16 Climate Scientists React to Donald Trump’s Victory
In what's widely being described as the most shocking upset in U.S. election history, Donald J. Trump has beaten Hillary Clinton to become the 45th president of the U.S.
'Trump's Election Is a Disaster' by @StefanieSpear of @EcoWatch: https://t.co/jjnWs7tWQX #GameOverForClimate— Michael E. Mann (@Michael E. Mann)1478701114.0
As one of the world's largest greenhouse gas emitters, any change at the top of U.S. politics warrants a consideration of what it might mean for the country's climate and energy priorities.
For example, Trump said he thought climate change was a "hoax" perpetrated by the Chinese. In addition, he pledged to end federal spending on low-carbon energy and to pull the U.S. out of the UN's Paris agreement on climate change. Carbon Brief has been asking climate scientists for their reactions.
Dr. Philip B Duffy, executive director of the Woods Hole Research Center and former senior policy analyst in the White House Office of Science and Technology Policy:
Dr. Malte Meinhausen, senior researcher in climate impacts at the University of Melbourne and the Potsdam Institute for Climate Impact Research:
"Trump said a lot of things. It looks like the Trump administration could do anything. From playing a destructive role in international climate protection to just letting others get on with the job … However, despite the momentum for climate protection having, in part, an autonomous motor due to the economics of lower cost renewable energies, a hostile Trump administration towards the Paris agreement could do a lot of damage.
"Trump won't be able to withdraw from the Paris agreement for three years (Article 28) now that it just entered into force—one of the world's major success stories. A hostile Trump administration could, however, withdraw from the UNFCCC Convention and thereby also from the Paris agreement indirectly. In theory, that could happen quicker. It's unlikely that the administration would do so much self-harm, so. But Trump seems to defy conventional wisdom, so we don't know.
"The Paris agreement without the U.S. would live on, but the spirit and the international focus on one of the defining challenges of our time could get lost. And the economic opportunities for the U.S. will get lost too … Not a good outcome for the U.S. in that respect. Not a good outcome for the climate. Too early to tell how bad it will be, though. One can hear the world gasping for air."
Prof. Hans Joachim Schellnhuber, director of the Potsdam Institute for Climate Impact Research:
"President-elect Donald Trump's stance on global warming is well known. Ironically, he contributed to the popularity of our recent Turn Down the Heat report series for the World Bank by attacking it on Twitter.
"Yet apart from this, science cannot expect any positive climate action from him. The world has now to move forward without the U.S. on the road towards climate-risk mitigation and clean-technology innovation.
"The U.S. de-elected expertise and will likely show a blockade mentality now, so Europe and Asia have to pioneer and save the world. Formally leaving the Paris agreement would take longer than one Presidential term, yet of course the U.S. could simply refuse reducing national emissions which would mean a de facto exit out of international climate policy. Now the U.S. are one of the world's biggest economies and even just four years of unbridled emission staying in the atmosphere for many hundreds years would make a substantial difference. The climate system doesn't forget and it doesn't forgive. The U.S. is prone to potentially devastating climate change impacts. Hurricanes hit U.S. coastal cities, the California drought affected farmers and a state like Florida is particularly exposed to sea-level rise. Sadly, in the long run nature itself might show the U.S. citizens that climate change as a matter of fact is not a hoax. But it might be too late."
Dr. Rachel James, research fellow in climate modeling at the Environmental Change Institute at the University of Oxford:
Dr. Twila Moon, lecturer in cryospheric sciences at the University of Bristol:
"Having a person in the position of U.S. President who does not acknowledge scientific facts establishing the clear reality of human-caused climate change is a disgrace. This is a sad and scary outcome for science and for action on halting harmful climate change.
"But I am hopeful that the American people—from all parties—are realizing that climate change is happening in our own backyards and the will of the people will push the political needle. I think our response must be to work harder, together to move forward on climate action locally, regionally, and, as best as possible, nationally. As a human being, I think it is our moral obligation."
Prof. Andrew Dessler, professor of atmospheric sciences at Texas A&M University:
"I don't think anyone knows what this means for U.S. policy on climate science or emissions reductions. I think we all expected that the Clean Power Plan would end eventually up in front of the Supreme Court and its fate there is more doubtful now that Trump gets to appoint the next Justice. On the other hand, renewable power is getting cheap fast and my optimistic hope is that renewable energy gets so cheap that we switch to it without any national government policy. I guess we'll see!"
Prof. Shaun Marcott, professor in palaeoclimate at the University of Wisconsin-Madison:
"This election in terms of future global climate change was critical as the new president will be making decisions that will have long lasting consequences, both in the policy being set in the homeland and policies that they will help set with their international counterparts.
"Much like Britain and the Brexit vote, the U.S. now finds itself at a crossroad and heading in a direction that, in my opinion, does not appear to be sustainable. This is obvious, I think, to most people. I think the best way I've heard it described is that decisions made by this incoming president will set in policies that could have lasting climate change effects extending 10,000 years into the future. The stakes were high and unfortunately both of our leading candidates didn't even discuss, or did so very rarely, climate change at large in any of the debates."
Charles F Kennel, distinguished professor emeritus at the Scripps Institute of Oceanography:
Dr. Emily Shuckburgh, head of open oceans at the British Antarctic Survey:
"A significant theme of recent political discourse has been the use and misuse of evidence. In moving forward, rather than bemoan a 'post-truth world,' those of us who have roles in gathering, curating and disseminating evidence must strive to understand the process of human decision-making better.
"We absolutely need to make policy on climate and other matters that is consistent with the evidence base. But within a democracy, this has to be achieved through the will of the people. That requires broad and deep engagement by us with all sections of the wider society to understand the contextual circumstances and to proactively place the evidence in frames that are relevant to people.
"If we are to meet the objectives of the Paris agreement, it is abundantly clear that a major transformation of society will be required. This is a significant technological challenge, but the political events in the U.S. and UK that have surprised the establishment also serve to remind us the importance of recognizing the implications of change for all sectors of society. If we can learn from this, there is hope that we may be able to successfully navigate the perilous journey ahead of us in responding to the climate challenge."
Prof. Jean-Pierre Gattuso, professor of biological oceanography at the Centre National de la Recherche Scientifique, Sorbonne University and the Institute for Sustainable Development and International Relations.
"The result of the U.S. presidential election is very worrisome on many counts, including of course for climate negotiations. The Paris agreement is a construct that was many years in the making and is, therefore, extremely fragile. Even though the U.S. cannot formally leave the agreement in the next 4 years, not having the U.S. on board and pushing for the full implementation of the Paris agreement may well affect billions of people for hundreds of years. The outcome of this election is clearly not the end of the world but the consequences for humanity are potentially dreadful."
Prof. Jason Box, professor in glaciology at the Geologic Survey of Denmark and Greenland:
"Those of us in the sciences are all about the rational and we surround ourselves by rational media. The U.S. election outcome reflects the irrational and how those voters were influenced by irrational media."
Dr. Michael. E. Mann, distinguished professor of atmospheric science at Penn State University
"To quote James Hansen, I fear this may be game over for the climate."
Prof. Eric Steig, professor of earth and space science at the University of Washington:
"It's impossible to know just how far Trump and the Republican controlled House and Senate will want to push an anti-intellectual, anti-science agenda. I suspect there will be more immediate political concerns. In the medium term, I don't expect there will be major cuts to science funding; I think Trump will likely govern less as an ideologue and more as an opportunist in this respect. It now is exceedingly unlikely, of course, that any international climate change mitigation agreements will proceed; or if they do, it will not be with the U.S on board."
Dr. Niklas Höhne, professor for mitigation of greenhouse gases at Wageningen University and founding partner of the NewClimate Institute:
"This election result seriously threaten the U.S.'s federal climate action. In the worst case, Trump will work towards reversal of the Clean Power Plan. If the Clean Power Plan was to be permanently stopped, emissions projections would be significantly higher than in its absence and we would be seeing an increasing emissions trend over the next decade—at around 6 percent below 2005 levels in 2025. All eyes are now on the federal states to pursue further climate policies, but the impact on the USA's overall contribution may be limited. This means that the climate target that the USA communicated as part of the Paris agreement process, the 'nationally determined contribution,' will probably not be met and U.S. emissions will remain stable at current levels until 2030.
"In spite of this grave eventuality of no climate action from the new U.S. federal government on the horizon, there is still hope that global greenhouse gas emissions can be reduced. Technological developments can be triggered by transformative coalitions, smaller groups of countries that actively support a technology, to eventually achieve global scale. We have seen this model work for renewable energy. The renewable energy agenda was initially supported by a few pro-active countries such as Germany, which brought the costs down to the extent that renewable technologies are now the 'new normal' for new power plants in many places in the world. Similar developments can be seen with electric mobility where Norway, California and, in particular, China are aggressively supporting electric cars. It is fair to believe that these would also become the 'new normal' in a few years time."
Prof. Jim Skea, professor of sustainable energy at Imperial College London and co-chair of IPCC Working Group 3:
"IPCC is a scientific body with 195 countries making up its membership so I don't expect it to make any pronouncement on political developments. But as a scientist involved in IPCC, I can say that U.S. scientists have made a huge contribution to climate science in general and IPCC in particular across all the assessment reports. This is something that the U.S. can be very proud of. It's far too early to tell how the next administration will approach these issues. In my experience there has been a remarkable consistency in the U.S. approach to IPCC across different administrations. And, again, with much practical climate action in the U.S. taking place at the city and state level, it's too early to say how things will pan out in the policy domain."
Prof. Katharine Hayhoe, atmospheric scientist and associate professor of political science at Texas Tech University:
"The bright light of hope the Paris agreement shone on the bleak and discouraging landscape of climate change has been dimmed but not extinguished."
Reposted with permission from our media associate Carbon Brief.
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Farmers are the stewards of our planet's precious soil, one of the least understood and untapped defenses against climate change. Because of its massive potential to store carbon and foundational role in growing our food supply, soil makes farming a solution for both climate change and food security.
Soil can act as a natural "carbon sink." Climate Central, 2019
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By Shelly Miller
The vast majority of SARS-CoV-2 transmission occurs indoors, most of it from the inhalation of airborne particles that contain the coronavirus. The best way to prevent the virus from spreading in a home or business would be to simply keep infected people away. But this is hard to do when an estimated 40% of cases are asymptomatic and asymptomatic people can still spread the coronavirus to others.
It’s All About Fresh, Outside Air<p>The safest indoor space is one that constantly has lots of <a href="https://www.epa.gov/indoor-air-quality-iaq/how-does-outdoor-air-enter-building" target="_blank">outside air</a> replacing the stale air inside.</p><p>In commercial buildings, <a href="https://www.ncbi.nlm.nih.gov/books/NBK143277/" target="_blank">outside air is usually pumped in</a> through heating, ventilating and air-conditioning (HVAC) systems. In <a href="https://www.epa.gov/indoor-air-quality-iaq/how-does-outdoor-air-enter-building" target="_blank">homes, outside air gets in</a> through open windows and doors, in addition to seeping in through various nooks and crannies.</p><p>Simply put, the more fresh, outside air inside a building, the better. Bringing in this air dilutes any contaminant in a building, whether a virus or a something else, and <a href="https://doi.org/10.1111/j.1600-0668.2010.00703.x" target="_blank">reduces the exposure of anyone inside</a>. Environmental engineers like me quantify how much outside air is getting into a building using a measure called the <a href="https://doi.org/10.1038/jes.2013.30" target="_blank">air exchange rate</a>. This number quantifies the number of times the air inside a building gets replaced with air from outside in an hour.</p><p>While the exact rate depends on the number of people and size of the room, most experts consider roughly <a href="https://doi.org/10.1034/j.1600-0668.2002.01145.x" target="_blank">six air changes an hour</a> to be good for a 10-foot-by-10-foot room with three to four people in it. In a pandemic this should be higher, with one study from 2016 suggesting that an exchange rate of nine times per hour <a href="https://doi.org/10.1177%2F1420326X16631596" target="_blank">reduced the spread of SARS, MERS and H1N1</a> in a Hong Kong hospital.</p><p>Many buildings in the U.S., <a href="https://doi.org/10.1111/ina.12403" target="_blank">especially schools</a>, do not meet recommended ventilation rates. Thankfully, it can be pretty easy to get more outside air into a building. Keeping <a href="https://doi.org/10.1016/S0960-1481(99)00012-9" target="_blank">windows and doors open</a> is a good start. Putting a box fan in a window blowing out can greatly increase air exchange too. In buildings that don't have operable windows, you can change the mechanical ventilation system to increase how much air it is pumping. But in any room, the more people inside, the faster the air should be replaced.</p>
Using CO2 to Measure Air Circulation<p>So how do you know if the room you're in has enough air exchange? It's actually a pretty hard number to calculate. But there's an easy-to-measure proxy that can help. Every time you exhale, you <a href="https://doi.org/10.1111/ina.12383" target="_blank">release CO2</a> into the air. Since the coronavirus is most often spread by breathing, coughing or talking, you can use <a href="https://pdfs.semanticscholar.org/dd7e/b2870c38f70e5285e5118ed6f158c091f7cf.pdf" target="_blank">CO2 levels</a> to see if the room is filling up with potentially infectious exhalations. The CO2 level lets you estimate if enough fresh outside air is getting in.</p><p>Outdoors, CO2 levels are just above 400 parts per million (ppm). A well ventilated room will have around <a href="https://doi.org/10.1111/j.1600-0668.1999.00003.x" target="_blank">800 ppm of CO2</a>. Any higher than that and it is a sign the room might need more ventilation.</p><p>Last year, researchers in Taiwan reported on the <a href="https://doi.org/10.1111/ina.12639" target="_blank">effect of ventilation on a tuberculosis outbreak</a> at Taipei University. Many of the rooms in the school were underventilated and had CO2 levels above 3,000 ppm. When engineers improved air circulation and got CO2 levels under 600 ppm, <a href="https://doi.org/10.1111/ina.12639" target="_blank">the outbreak completely stopped</a>. According to the research, the increase in ventilation was responsible for 97% of the decrease in transmission.</p><p>Since the coronavirus is spread through the air, higher CO2 levels in a room likely mean there is a <a href="https://doi.org/10.1111/ina.12639" target="_blank">higher chance of transmission</a> if an infected person is inside. Based on the study above, I recommend trying to keep the CO2 levels below 600 ppm. You can buy <a href="https://doi.org/10.5194/amt-7-3325-2014" target="_blank">good CO2 meters</a> for around $100 online; just make sure that they are accurate to within 50 ppm.</p>
Air Cleaners<p>If you are in a room that can't get enough outside air for dilution, consider an air cleaner, also commonly called air purifiers. These machines remove particles from the air, usually using <a href="https://doi.org/10.1016/j.cap.2005.07.013" target="_blank">a filter</a> made of tightly woven fibers. They can <a href="https://shellym80304.files.wordpress.com/2020/06/miller-leiden-et-al-1996.pdf" target="_blank">capture particles containing bacteria and viruses</a> and can help reduce disease transmission.</p><p>The U.S. Environmental Protection Agency says that <a href="https://www.epa.gov/coronavirus/air-cleaners-hvac-filters-and-coronavirus-covid-19" target="_blank">air cleaners can do this for the coronavirus</a>, but not all air cleaners are equal. Before you go out and buy one, there are few things to keep in mind.</p><p>The first thing to consider is <a href="https://shellym80304.files.wordpress.com/2020/06/air-cleaner-report.pdf" target="_blank">how effective an air cleaner's filter is</a>. Your best option is a cleaner that uses a high-efficiency particulate air (<a href="https://doi.org/10.1016/S0021-8502(05)80214-9" target="_blank">HEPA</a>) filter, as these remove more than <a href="https://doi.org/10.1063/1.2771421" target="_blank">99.97% of all particle sizes</a>.</p><p>The second thing to consider is how powerful the cleaner is. The bigger the room – or the more people in it – the more air needs to be cleaned. I worked with some colleagues at Harvard to put together a tool to help teachers and schools determine <a href="https://docs.google.com/spreadsheets/d/1NEhk1IEdbEi_b3wa6gI_zNs8uBJjlSS-86d4b7bW098/edit#gid=1275403500" target="_blank">how powerful of an air cleaner you need for different classroom sizes</a>.</p><p>The last thing to consider is the validity of the claims made by the company producing the air cleaner.</p><p>The Association of Home Appliance Manufacturers certifies air cleaners, so the AHAM Verifide seal is a good place to start. Additionally, the California Air Resources Board has a <a href="https://ww2.arb.ca.gov/our-work/programs/air-cleaners-ozone-products/california-certified-air-cleaning-devices" target="_blank">list of air cleaners</a> that are certified as safe and effective, though not all of them use HEPA filters.</p>
Keep Air Fresh or Get Outside<p>Both the <a href="https://www.who.int/news-room/commentaries/detail/transmission-of-sars-cov-2-implications-for-infection-prevention-precautions" target="_blank">World Health Organization</a> and <a href="https://www.cdc.gov/coronavirus/2019-ncov/daily-life-coping/deciding-to-go-out.html" target="_blank">U.S. Centers for Disease Control and Prevention</a> say that poor ventilation increases the risk of transmitting the coronavirus.</p><p>If you are in control of your indoor environment, make sure you are getting enough fresh air from outside circulating into the building. A CO2 monitor can help give you a clue if there is enough ventilation, and if CO2 levels start going up, open some windows and <a href="https://www.advisory.com/daily-briefing/2020/07/17/outdoor-gathering" target="_blank">take a break outside</a>. If you can't get enough fresh air into a room, an air cleaner might be a good idea. If you do get an air cleaner, be aware that they don't remove CO2, so even though the air might be safer, CO2 levels could still be high in the room.</p><p>If you walk into a building and it feels hot, stuffy and crowded, chances are that there is not enough ventilation. Turn around and leave.</p><p>By paying attention to air circulation and filtration, improving them where you can and staying away from places where you can't, you can add another powerful tool to your anti-coronavirus toolkit.</p>
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The tiny island nation of Mauritius, known for its turquoise waters, vibrant corals and diverse ecosystem, is in the midst of an environmental catastrophe after a Japanese cargo ship struck a reef off the country's coast two weeks ago. That ship, which is still intact, has since leaked more than 1,000 metric tons of oil into the Indian Ocean. Now, a greater threat looms, as a growing crack in the ship's hull might cause the ship to split in two and release the rest of the ship's oil into the water, NPR reported.
On Friday, Prime Minister Pravind Jugnauth declared a state of environmental emergency.
France has sent a military aircraft carrying pollution control equipment from the nearby island of Reunion to help mitigate the disaster. Additionally, Japan has sent a six-member team to assist as well, the BBC reported.
The teams are working to pump out the remaining oil from the ship, which was believed to be carrying 4,000 metric tons of fuel.
"We are expecting the worst," Mauritian Wildlife Foundation manager Jean Hugues Gardenne said on Monday, The Weather Channel reported. "The ship is showing really big, big cracks. We believe it will break into two at any time, at the maximum within two days. So much oil remains in the ship, so the disaster could become much worse. It's important to remove as much oil as possible. Helicopters are taking out the fuel little by little, ton by ton."
Sunil Dowarkasing, a former strategist for Greenpeace International and former member of parliament in Mauritius, told CNN that the ship contains three oil tanks. The one that ruptured has stopped leaking oil, giving disaster crews time to use a tanker and salvage teams to remove oil from the other two tanks before the ship splits.
By the end of Tuesday, the crew had removed over 1,000 metric tons of oil from the ship, NPR reported, leaving about 1,800 metric tons of oil and diesel, according to the company that owns the ship. So far the frantic efforts are paying off. Earlier today, a local police chief told BBC that there were still 700 metric tons aboard the ship.
The oil spill has already killed marine animals and turned the turquoise water black. It's also threatening the long-term viability of the country's coral reefs, lagoons and shoreline, NBC News reported.
"We are starting to see dead fish. We are starting to see animals like crabs covered in oil, we are starting to see seabirds covered in oil, including some which could not be rescued," said Vikash Tatayah, conservation director at Mauritius Wildlife Foundation, according to The Weather Channel.
While the Mauritian authorities have asked residents to leave the clean-up to officials, locals have organized to help.
"People have realized that they need to take things into their hands. We are here to protect our fauna and flora," environmental activist Ashok Subron said in an AFP story.
Reuters reported that sugar cane leaves, plastic bottles and human hair donated by locals are being sewn into makeshift booms.
Human hair absorbs oil, but not water, so scientists have long suggested it as a material to contain oil spills, Gizmodo reported. Mauritians are currently collecting as much human hair as possible to contribute to the booms, which consist of tubes and nets that float on the water to trap the oil.
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Environmentalists and ornithologists found a friend in a federal court on Tuesday when a judge struck down a Trump administration attempt to allow polluters to kill birds without repercussions through rewriting the Migratory Treaty Bird Act (MBTA).
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By Elizabeth Claire Alberts
There are trillions of microplastics in the ocean — they bob on the surface, float through the water column, and accumulate in clusters on the seafloor. With plastic being so ubiquitous, it's inevitable that marine organisms, such as sharks, will ingest them.
Polyproylene fibers found in one of the sampled sharks. Kristian Parton
Spiny dogfish. NOAA / Wikimedia Commons<p>"There appear to be two routes for these particles to end up in the sharks," Parton said. "The first through their food source [such as] crustaceans. Their prey may already contain these fibers, and consequently it's passed to the shark through bioaccumulation up the food chain. The second pathway is direct ingestion from the sediment. As these sharks feed, they'll often suck up sediment into their mouths, some of this is expelled straight away, although some is swallowed, therefore fibers and particles that may have sunk down into the seabed may be directly ingested from the surrounding sediment as these sharks feed."</p><p>Some sharks only contained a few plastic particles, but others contained dozens. The larger the shark, the more plastic was in it, the findings suggested. The highest number of microplastics was found in an individual bull huss, which had 154 polypropylene fibers inside its stomach and intestines.</p><p>"It's perhaps likely this individual shark had swallowed a larger piece of fishing rope/netting and this has broken down during digestive processes within the shark, and also broken down into smaller pieces during our analysis," Parton said.</p>
Lesser-spotted dogfish caught as bycatch. Kristian Parton<p>While this study only examined the stomach and digestive tracts of demersal sharks, Parton says it's possible that plastic would be present in other parts of the sharks' bodies, such as the liver and muscle tissue. However, more research would be needed to prove this.</p><p>At the moment, there is also limited understanding of how microplastic ingestion would impact a shark's health, although microplastics are known to negatively influence feeding behavior, development, reproduction and life span of zooplankton and crustaceans.</p><p>"If we can show that these fibers contain inorganic pollutants attached to them, then that could have real consequences for these shark species at a cellular level, impacting various internal body systems," Parton said.</p>
Parton in the lab. Kristian Parton<p>This new study demonstrates how pervasive and destructive plastic pollution can be in the marine environment, according to Will McCallum, head of oceans for Greenpeace U.K.</p><p>"Our addiction to plastics combined with the lack of mechanisms to protect our oceans is suffocating marine life," McCallum said in a statement. "Sharks sit on top of the marine food web and play a vital role in ocean ecosystems. Yet, they are completely exposed to pollutants and other human impactful activities. We need to stop producing so much plastic and create a network of ocean sanctuaries to give wildlife space to recover. The ocean is not our dump, marine life deserves better than plastic."</p>
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By Loveday Wright and Stuart Braun
After a Japanese-owned oil tanker struck a reef off Mauritius on July 25, a prolonged period of inaction is threatening to become an ecological disaster.
<div id="bb0a7" class="rm-shortcode" data-rm-shortcode-id="e5aefc0fff61ab1aea2f4b03c5399864"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1291765757013983238" data-partner="rebelmouse"><div style="margin:1em 0">The #oilspill is devastating but I want to honour the community mobilisation at the Mahebourg waterfront today (to… https://t.co/UWFkZFdjdi</div> — Fabiola Monty (@Fabiola Monty)<a href="https://twitter.com/LFabiolaMonty/statuses/1291765757013983238">1596815930.0</a></blockquote></div><p>"Booms are made of nylon mesh filled with #sugarcane straws all hand-stitched by Mauritian volunteers, empty plastic bottles used as buoys," described Mauritian journalist Zeenat Hansrod in a tweet. </p>
How to Tackle Oil Spills<p>The method for tackling oil spills depends on several factors, including the type and amount of oil in question, location and weather conditions.</p><p>"Once the oil comes to shore, the more intensive the cleaning technique. You can risk causing further damage," said Nicky Cariglia, an independent consultant at Marittima, who specializes in marine pollution. </p><p>"If you wanted to remove all traces of oil, the techniques available become increasingly aggressive the less oil that remains. In mangroves, you would have the added risk of causing damage by trampling," Cariglia told DW. Highly sensitive mangrove ecosystems line the Mauritius east coast that is threatened by the current spill.</p><p>Because oil normally has a lower density than water, it floats on the surface of the ocean. This means that for clean-up action to be most effective, it should happen very quickly after a spill, before the oil disperses. </p>
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