
By Bill McKibben
The upcoming election looks to be an apocalyptic turning point for our democracy—and our planet. In Turnout! Mobilizing Voters in an Emergency, political visionaries and movement leaders such as Bill McKibben define the urgency of this moment and provide a manual for turning out voters in an age of extreme inequality, climate change, and pandemic.
It is a cliché at this point to describe an election as "the most important of our lifetimes." Every election is key—they're how we take stock of where we are as a nation. They're part of a chain stretching into the past and into the future.
But if you wanted to make the argument—and I do—that this year actually is special, the climate crisis might be as good a place as any to start. And that's because it comes with a feature that most political issues don't: a deadline. In October 2018, the world's climate scientists issued a special report, assessing our chances of meeting the targets set at the global climate talks in Paris a few years before. Those targets were modest—they called for attempting to hold the planet's temperature increase to 1.5 degrees Celsius. Since we've already raised the temperature 1 degree, and that's been enough to melt half the summer sea ice in the Arctic, kill off vast swaths of coral reef, and set big patches of the Earth on fire, it's not like the Paris targets are desirable. (Desirable was the world many of us were born onto.) They're crucial. And if we hope to meet them, the scientists were quite explicit: We have to fundamentally transform our energy systems by 2030. They helpfully defined that fundamental transformation: We need to cut our carbon emissions in half. In 10 years.
Anyone who has ever spent time around governments knows that speed is not one of their hallmarks. If we have any hope of meeting that target set for a decade out, we need to be hard at work just about … now. If another four years of inaction passes, the chance is over, and with it the planet as we've known it.
The past four years, of course, have been more than a time of annoying stasis—it's been a period of active regression. The Trump administration has tried, with a good deal of success, to undercut every environmental law on the books, paying particular attention to climate change. A rogue's gallery of coal lobbyists and oil executives have taken the top jobs in the environmental and energy bureaucracies and used the posts to give their industries free rein across the landscape. Where the Obama administration had scored modest successes—ratcheting up the gas mileage for cars, for instance—they've sprinted in the opposite direction.
Above all, of course, they've removed America from those Paris climate accords, in an act of breathtaking vandalism. It took decades for the international community to reach those agreements, and now the country that has poured the most carbon into the atmosphere is also the only country not engaged in the only global effort to do something about it.
It's not that the Paris accords were so amazing—even the people negotiating them acknowledged at their signing in 2015 that they fell short of the task. Even if all the countries on Earth kept their pledges, the mercury would still rise nearly 3 degrees Celsius. But the calculation was that perhaps once countries began implementing renewable energy on a large scale, they'd find it cheaper and easier than they reckoned, and a virtuous spiral would ensue, allowing much faster progress. At first, it seemed to be working—throughout the past decade the world's engineers kept dropping the price of sun and wind, and the pace of installations started to quicken. But then appeared Trump, who labeled global warming a hoax manufactured by the Chinese and who believed that wind turbines caused cancer. It was as if the road along which we were supposed to be accelerating was suddenly filled with potholes; momentum slowed, not just here but in much of the rest of the world. (The appearance of Trump-like figures in other countries didn't help—Brazil's Bolsonaro, for instance, started opening up the Amazon to intense exploitation, an act as reckless as opening a new fleet of gas-fired power plants.) Having lost three decades to the oil industry's campaign of disinformation, we were now losing time again.
And time, as I have indicated, is the most precious asset here. Most of our problems linger—my entire adult life we've been engaged in the fight to try to provide medical care to Americans. It's infuriating that we haven't done it yet; Trump's efforts to cut back access will, of course, kill many and bankrupt more. But at least they won't make it harder to solve the problem once we finally decide to—the day will come when some president is able to make our country match every other industrialized nation, and the preceding decades will not have made it harder. The climate crisis isn't like that—as a team of scientists reported in November, we're about to cross a whole series of tipping points, ranging from destabilizing Antarctic ice sheets to slowing down vast ocean currents. These are not reversible; no one has a plan for refreezing the poles.
Every election that passes, we lose leverage—this time around our last chance at limiting the temperature rise to anything like 1.5 degrees would slip through our fingers. Which is why we need to register and vote as never before. It's also, of course, why we need to do more than that: many of us are also hard at work this year taking on the big banks that fund the fossil fuel industry, trying to pull the financial lever as well as the political one. And even within the world of politics, we need to do much more than vote: no matter who wins, Nov. 4 and 5 and 6 are as important as Nov. 3; we have to push, and prod, and open up space for the people we work to install in office.
But in the autumn of an even-numbered year, we have a superpower that will wither as soon as Election Day passes. Our vote is our chance to have a say. In the case of the climate, that is not just about what will happen for the next four years. It's about what will happen for the next 10,000 years.
BILL MCKIBBEN is the Schumann Distinguished Scholar in Environmental Studies at Middlebury College, the founder of 350.org, and the winner of the 2014 Right Livelihood Award. He is a YES! contributing editor.
Reposted with permission from YES! Magazine.
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A Healthy Microbiome Builds a Strong Immune System That Could Help Defeat COVID-19
By Ana Maldonado-Contreras
Takeaways
- Your gut is home to trillions of bacteria that are vital for keeping you healthy.
- Some of these microbes help to regulate the immune system.
- New research, which has not yet been peer-reviewed, shows the presence of certain bacteria in the gut may reveal which people are more vulnerable to a more severe case of COVID-19.
You may not know it, but you have an army of microbes living inside of you that are essential for fighting off threats, including the virus that causes COVID-19.
How Do Resident Bacteria Keep You Healthy?
<p>Our immune defense is part of a complex biological response against harmful pathogens, such as viruses or bacteria. However, because our bodies are inhabited by trillions of mostly beneficial bacteria, virus and fungi, activation of our immune response is tightly regulated to distinguish between harmful and helpful microbes.</p><p>Our bacteria are spectacular companions diligently helping prime our immune system defenses to combat infections. A seminal study found that mice treated with antibiotics that eliminate bacteria in the gut exhibited an impaired immune response. These animals had low counts of virus-fighting white blood cells, weak antibody responses and poor production of a protein that is vital for <a href="https://doi.org/10.1073/pnas.1019378108" target="_blank">combating viral infection and modulating the immune response</a>.</p><p><a href="https://doi.org/10.1371/journal.pone.0184976" target="_blank" rel="noopener noreferrer">In another study</a>, mice were fed <em>Lactobacillus</em> bacteria, commonly used as probiotic in fermented food. These microbes reduced the severity of influenza infection. The <em>Lactobacillus</em>-treated mice did not lose weight and had only mild lung damage compared with untreated mice. Similarly, others have found that treatment of mice with <em>Lactobacillus</em> protects against different <a href="https://doi.org/10.1038/srep04638" target="_blank" rel="noopener noreferrer">subtypes of</a> <a href="https://doi.org/10.1038/s41598-017-17487-8" target="_blank" rel="noopener noreferrer">influenza</a> <a href="https://doi.org/10.1371/journal.ppat.1008072" target="_blank" rel="noopener noreferrer">virus</a> and human respiratory syncytial virus – the <a href="https://doi.org/10.1038/s41598-019-39602-7" target="_blank" rel="noopener noreferrer">major cause of viral bronchiolitis and pneumonia in children</a>.</p>Chronic Disease and Microbes
<p>Patients with chronic illnesses including Type 2 diabetes, obesity and cardiovascular disease exhibit a hyperactive immune system that fails to recognize a harmless stimulus and is linked to an altered gut microbiome.</p><p>In these chronic diseases, the gut microbiome lacks bacteria that activate <a href="https://doi.org/10.1126/science.1198469" target="_blank" rel="noopener noreferrer">immune cells</a> that block the response against harmless bacteria in our guts. Such alteration of the gut microbiome is also observed in <a href="https://doi.org/10.1073/pnas.1002601107" target="_blank" rel="noopener noreferrer">babies delivered by cesarean section</a>, individuals consuming a poor <a href="https://doi.org/10.1038/nature12820" target="_blank" rel="noopener noreferrer">diet</a> and the <a href="https://doi.org/10.1038/nature11053" target="_blank" rel="noopener noreferrer">elderly</a>.</p><p>In the U.S., 117 million individuals – about half the adult population – <a href="https://health.gov/our-work/food-nutrition/2015-2020-dietary-guidelines/guidelines/" target="_blank" rel="noopener noreferrer">suffer from Type 2 diabetes, obesity, cardiovascular disease or a combination of them</a>. That suggests that half of American adults carry a faulty microbiome army.</p><p>Research in my laboratory focuses on identifying gut bacteria that are critical for creating a balanced immune system, which fights life-threatening bacterial and viral infections, while tolerating the beneficial bacteria in and on us.</p><p>Given that diet affects the diversity of bacteria in the gut, <a href="https://www.umassmed.edu/nutrition/melody-trial-info/" target="_blank" rel="noopener noreferrer">my lab studies show how diet can be used</a> as a therapy for chronic diseases. Using different foods, people can shift their gut microbiome to one that boosts a healthy immune response.</p><p>A fraction of patients infected with SARS-CoV-2, the virus that causes COVID-19 disease, develop severe complications that require hospitalization in intensive care units. What do many of those patients have in common? <a href="https://www.cdc.gov/mmwr/volumes/69/wr/mm6912e2.htm" target="_blank" rel="noopener noreferrer">Old age</a> and chronic diet-related diseases like obesity, Type 2 diabetes and cardiovascular disease.</p><p><a href="http://doi.org/10.1016/j.jada.2008.12.019" target="_blank" rel="noopener noreferrer">Black and Latinx people are disproportionately affected by obesity, Type 2 diabetes and cardiovascular disease</a>, all of which are linked to poor nutrition. Thus, it is not a coincidence that <a href="https://www.cdc.gov/mmwr/volumes/69/wr/mm6933e1.htm" target="_blank" rel="noopener noreferrer">these groups have suffered more deaths from COVID-19</a> compared with whites. This is the case not only in the U.S. but also <a href="https://www.washingtonpost.com/world/europe/blacks-in-britain-are-four-times-as-likely-to-die-of-coronavirus-as-whites-data-show/2020/05/07/2dc76710-9067-11ea-9322-a29e75effc93_story.html" target="_blank" rel="noopener noreferrer">in Britain</a>.</p>Discovering Microbes That Predict COVID-19 Severity
<p>The COVID-19 pandemic has inspired me to shift my research and explore the role of the gut microbiome in the overly aggressive immune response against SARS-CoV-2 infection.</p><p>My colleagues and I have hypothesized that critically ill SARS-CoV-2 patients with conditions like obesity, Type 2 diabetes and cardiovascular disease exhibit an altered gut microbiome that aggravates <a href="https://theconversation.com/exercise-may-help-reduce-risk-of-deadly-covid-19-complication-ards-136922" target="_blank" rel="noopener noreferrer">acute respiratory distress syndrome</a>.</p><p>Acute respiratory distress syndrome, a life-threatening lung injury, in SARS-CoV-2 patients is thought to develop from a <a href="http://doi.org/10.1016/j.cytogfr.2020.05.003" target="_blank" rel="noopener noreferrer">fatal overreaction of the immune response</a> called a <a href="https://theconversation.com/blocking-the-deadly-cytokine-storm-is-a-vital-weapon-for-treating-covid-19-137690" target="_blank" rel="noopener noreferrer">cytokine storm</a> <a href="http://doi.org/10.1016/S2213-2600(20)30216-2" target="_blank" rel="noopener noreferrer">that causes an uncontrolled flood</a> <a href="http://doi.org/10.1016/S2213-2600(20)30216-2" target="_blank" rel="noopener noreferrer">of immune cells into the lungs</a>. In these patients, their own uncontrolled inflammatory immune response, rather than the virus itself, causes the <a href="http://doi.org/10.1007/s00134-020-05991-x" target="_blank" rel="noopener noreferrer">severe lung injury and multiorgan failures</a> that lead to death.</p><p>Several studies <a href="https://doi.org/10.1016/j.trsl.2020.08.004" target="_blank" rel="noopener noreferrer">described in one recent review</a> have identified an altered gut microbiome in patients with COVID-19. However, identification of specific bacteria within the microbiome that could predict COVID-19 severity is lacking.</p><p>To address this question, my colleagues and I recruited COVID-19 hospitalized patients with severe and moderate symptoms. We collected stool and saliva samples to determine whether bacteria within the gut and oral microbiome could predict COVID-19 severity. The identification of microbiome markers that can predict the clinical outcomes of COVID-19 disease is key to help prioritize patients needing urgent treatment.</p><p><a href="https://doi.org/10.1101/2021.01.05.20249061" target="_blank" rel="noopener noreferrer">We demonstrated</a>, in a paper which has not yet been peer reviewed, that the composition of the gut microbiome is the strongest predictor of COVID-19 severity compared to patient's clinical characteristics commonly used to do so. Specifically, we identified that the presence of a bacterium in the stool – called <em>Enterococcus faecalis</em>– was a robust predictor of COVID-19 severity. Not surprisingly, <em>Enterococcus faecalis</em> has been associated with <a href="https://doi.org/10.1053/j.gastro.2011.05.035" target="_blank" rel="noopener noreferrer">chronic</a> <a href="https://doi.org/10.1016/S0002-9440(10)61172-8" target="_blank" rel="noopener noreferrer">inflammation</a>.</p><p><em>Enterococcus faecalis</em> collected from feces can be grown outside of the body in clinical laboratories. Thus, an <em>E. faecalis</em> test might be a cost-effective, rapid and relatively easy way to identify patients who are likely to require more supportive care and therapeutic interventions to improve their chances of survival.</p><p>But it is not yet clear from our research what is the contribution of the altered microbiome in the immune response to SARS-CoV-2 infection. A recent study has shown that <a href="https://doi.org/10.1101/2020.12.11.416180" target="_blank" rel="noopener noreferrer">SARS-CoV-2 infection triggers an imbalance in immune cells</a> called <a href="https://doi.org/10.1111/imr.12170" target="_blank" rel="noopener noreferrer">T regulatory cells that are critical to immune balance</a>.</p><p>Bacteria from the gut microbiome are responsible for the <a href="https://doi.org/10.7554/eLife.30916.001" target="_blank" rel="noopener noreferrer">proper activation</a> <a href="https://doi.org/10.1126/science.1198469" target="_blank" rel="noopener noreferrer">of those T-regulatory</a> <a href="https://doi.org/10.1038/nri.2016.36" target="_blank" rel="noopener noreferrer">cells</a>. Thus, researchers like me need to take repeated patient stool, saliva and blood samples over a longer time frame to learn how the altered microbiome observed in COVID-19 patients can modulate COVID-19 disease severity, perhaps by altering the development of the T-regulatory cells.</p><p>As a Latina scientist investigating interactions between diet, microbiome and immunity, I must stress the importance of better policies to improve access to healthy foods, which lead to a healthier microbiome. It is also important to design culturally sensitive dietary interventions for Black and Latinx communities. While a good-quality diet might not prevent SARS-CoV-2 infection, it can treat the underlying conditions related to its severity.</p><p><em><a href="https://theconversation.com/profiles/ana-maldonado-contreras-1152969" target="_blank">Ana Maldonado-Contreras</a> is an assistant professor of Microbiology and Physiological Systems at the University of Massachusetts Medical School.</em></p><p><em>Disclosure statement: Ana Maldonado-Contreras receives funding from The Helmsley Charitable Trust and her work has been supported by the American Gastroenterological Association. She received The Charles A. King Trust Postdoctoral Research Fellowship. She is also member of the Diversity Committee of the American Gastroenterological Association.</em></p><p><em style="">Reposted with permission from <a href="https://theconversation.com/a-healthy-microbiome-builds-a-strong-immune-system-that-could-help-defeat-covid-19-145668" target="_blank" rel="noopener noreferrer" style="">The Conversation</a>. </em></p>By Jeff Masters, Ph.D.
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