Scientists Find Plants Are Growing Higher up the Himalayas
Researchers looked at satellite data from 1993 to 2018 and found plant life extending into the harsh terrain between the top of the tree line and the bottom of the snowline. The new growth may have large impacts on the water that feeds the rivers that flow down from the Himalayas, according to lead researcher, Karen Anderson, of the University of Exeter in the UK.
"If the ecology is changing, that will have impacts on the hydrology. Nobody's considered that before," she said, as the New Scientist reported.
That's significant since nearly 1.4 billion people rely on water from the Himalayas, according to The Telegraph.
Anderson and her team looked at 25 years of images from NASA's Landsat satellites to zero in on the subnival region - the area between the tree line (the edge of where trees can grow) and the snow line (the boundary between permanently snow-covered land and snow-free land), as BBC reported. The rocky, cold terrain that is over 4,500 meters (13,600 feet) above sea level is particularly inhospitable to most plants, meaning the vegetation is mostly shrubs and grasses.
The subnival region is also very large, extending five to 15 times the size of the landmass covered in snow and ice, according to the study. "Yet, the harsh conditions make the area difficult to study. There's hardly any ecological data from this region at all," said Anderson, as the New Scientist reported.
For this paper, Anderson and her team focused on three sections of the Hindu Kush Himalaya, a range that stretches from Afghanistan in the west to Myanmar in the east, as Newsweek reported.
"The strongest trend in increased vegetation cover was between 5,000 meters and 5,500 meters altitude," said Anderson, as BBC reported. "At higher elevations, the expansion was strong on flatter areas while at lower levels that has been observed on steeper slopes."
There is no definitive reason that plants are moving to higher elevations, but the climate crisis is a likely culprit. "My initial guess would be that the primary driver is temperature limitation being removed," said Anderson to the New Scientist. She added that extra carbon dioxide in the atmosphere could also be helping the plants grow.
The climate crisis is dramatically affecting the Himalayas, which are warming rapidly due to greenhouse gas emissions. That has meant that elevations that were once too cold for plants may now be hospitable to them, as the New Scientist reported.
Already, concern has grown over the Himalayas' melting glaciers and how it will alter borders between countries. Furthermore, the melting glaciers will wreak havoc on the water supplies of countries that rely on runoff, causing an increase in floods and droughts.
Water that runs from the Himalayas feeds the 10 largest rivers in Asia, and 250 million rely on water from the range's glaciers, which are threatened by global warming, as the Telegraph reported. If global warming is somehow held to 1.5 degrees Celsius above pre-industrial levels, then one-third of the Himalayan ice caps will still melt away.
Anderson told the New Scientist that it is crucial to figure out how the new vegetation climbing the mountains will affect the flow of water. Plant growth may trap more heat, causing the snow to melt faster.
"The plants could trap more snow. Or the plants could warm the areas nearby through albedo effects, causing the snow to melt at a different rate," she said, as the Telegraph reported.
- Himalayan Glacier Melt Has Doubled Since 2000, Satellites Show ... ›
- Living in Hope and Fear Beside India's Retreating Himalayan Glaciers ›
- Thom Yorke of Radiohead Releases Song With Greenpeace to Help ... ›
- Patti Smith, Thom Yorke, Flea and More Featured on Just Released ... ›
- Musicians and Activists Unite at 'Pathway to Paris' - EcoWatch ›
EcoWatch Daily Newsletter
A national park in Thailand has come up with an innovative way to make sure guests clean up their own trash: mail it back to them.
- Supermarkets in Thailand and Vietnam Swap Plastic Packaging for ... ›
- Malaysia Sends Plastic Waste Back to 13 Wealthy Countries, Says It ... ›
- Thailand Begins the New Year With Plastic Bag Ban - EcoWatch ›
- Coronavirus Worsens Thailand's Plastic Waste Crisis - EcoWatch ›
- Marium, Thailand's Beloved Baby Dugong, Is the Latest Victim of ... ›
By Ilana Cohen
Four years ago, Jacob Abel cast his first presidential vote for Donald Trump. As a young conservative from Concord, North Carolina, the choice felt natural.
But this November, he plans to cast a "protest vote" for a write-in candidate or abstain from casting a ballot for president. A determining factor in his 180-degree turn? Climate change.
Fractures Among Young Climate Conservatives<p>While young conservatives have united around the urgency of climate change, they remain divided over how to bring their concerns to the ballot box. Some embrace right-wing <a href="https://www.washingtonpost.com/politics/biden-attacks-republican-convention/2020/08/24/434e5b46-e66d-11ea-970a-64c73a1c2392_story.html" target="_blank">attacks</a> painting Biden as a "tool of the left" and find his climate agenda "radical." Others can't find a way to justify voting for Trump, even if it means breaking with their party.</p><p>Patrick Mann from Orange County, California, voted for Trump in 2016. But today, he's leading Aggies for Joe at Texas A&M University and is co-founder of Texas Students for Biden. </p><p>Mann grew up watching wildfires ravage his home state, nearly forcing his family to evacuate in 2017. The GOP is failing to "meet the moment" for climate action, Mann said. He's hoping Biden will deliver on a promise to "<a href="https://www.desmoinesregister.com/story/opinion/columnists/caucus/2020/01/06/joe-biden-democrat-president-iowa-caucus-restore-soul-our-nation/2806422001/" target="_blank">restore the soul of our nation</a>." </p><p>Taylor Walker from Pensacola, Florida, is also determined to make her voice heard on climate, including by casting her first-ever vote for president—but not for Biden.</p>
A False Equivalency<p>Young climate conservatives may fear climate denial and delayed climate action, but more than that, they fear the growing political momentum around the Green New Deal, the massive spending it entails and <a href="https://joebiden.com/climate-plan/" target="_blank">Biden's citing of it</a> as a "crucial framing for meeting the climate challenges we face."</p><p>Many don't want to split with their party to support a Democrat whose <a href="https://www.npr.org/2019/09/03/757220130/joe-biden-on-bipartisanship-gun-control-and-regrets-over-inaction-after-a-traged" target="_blank">allegedly bipartisan intentions</a> they doubt. If stymieing what they consider a radical green agenda means re-electing a climate change denying president, so be it. </p><p>"I'm scared of climate change, but I'm also scared of the Green New Deal and what it means for America," said Ben Mutolo, a republicEN spokesperson and junior at SUNY College of Environmental Science and Forestry. </p><p>Mutolo felt encouraged by former Ohio Governor John Kasich's <a href="https://www.rollcall.com/2020/08/17/kasich-speech-to-democratic-convention-follows-years-of-building-conservative-credentials/" target="_blank" rel="noopener noreferrer">appearance</a> at the Democratic National Convention, but he still struggles to see himself voting for Biden. Though the candidate paints himself as a <a href="https://www.latimes.com/politics/story/2020-08-12/harris-biden-different-generation-similar-political-instinct" target="_blank" rel="noopener noreferrer">centrist,</a> Mutolo believes he's "cozying up to the ultra-progressive left." </p><p>Mutolo, who wants to see market-based climate solutions like a carbon tax, feels torn between a candidate whose climate plan relies on taking an "<a href="https://joebiden.com/environmental-justice-plan/#" target="_blank" rel="noopener noreferrer">All-of-Government approach</a>," and one with no efforts to reign in global warming at all. <span></span></p><p>Leiserowitz said he appreciated how a conservative might feel Biden's climate plan "doesn't jive with their limited government, free-market approach."</p><p>But he sees a strong distinction between voting for a presidential candidate with a <a href="https://www.nytimes.com/2020/07/14/us/politics/biden-climate-plan.html" target="_blank">$2 trillion climate plan</a> that includes large renewable energy investments, which have <a href="https://climatecommunication.yale.edu/publications/politics-global-warming-april-2020/" target="_blank" rel="noopener noreferrer">bipartisan support</a>, and a candidate trying "to take the country in the opposite direction, towards more fossil fuels."</p>
- 7 Republicans Joined Senate Democrats in Vote to Fight Climate ... ›
- Climate Change Acknowledged by Increasing Number of ... ›
The World Health Organization (WHO) announced Monday that 64 high-income nations have joined an effort to distribute a COVID-19 vaccine fairly, prioritizing the most vulnerable citizens, as Science reported. The program is called the COVID-19 Vaccines Global Access Facility, or Covax, and it is a joint effort led by the WHO, the Coalition for Epidemic Preparedness Innovations (CEPI) and Gavi, the Vaccine Alliance.
- Trump Denies CDC Director's 2021 Timeline for Coronavirus Vaccine ›
- CDC Tells States to Prepare for a Vaccine Before November Election ›
- Fauci Warns Pre-Pandemic Normalcy Not Likely Until Late 2021 ... ›
By Gloria Oladipo
In the face of dangerous heat waves this summer, Americans have taken shelter in air conditioned cooling centers. Normally, that would be a wise choice, but during a pandemic, indoor shelters present new risks. The same air conditioning systems that keep us cool recirculate air around us, potentially spreading the coronavirus.