
www.theguardian.com
30 October 2021
Climate experts warn world leaders 1.5C is ‘real science’, not just talking point
Scientists say keeping temperature rises to 1.5C is vital physical threshold for planet that cannot be negotiated
China installed enough solar and wind power between January and May to match the total electricity use of countries like Indonesia or Turkey, even as its clean energy industry faces deep financial strain.
In short:
Key quote:
“We knew China’s rush to install solar and wind was going to be wild but WOW.”
— Lauri Myllyvirta, senior fellow at the Asia Society Policy Institute
Why this matters:
China’s breakneck pace in expanding its clean energy infrastructure marks a pivotal shift in global energy dynamics, especially as the country remains the world’s largest emitter of greenhouse gases. While its investments in solar and wind reflect major progress in reducing reliance on coal, the rapid expansion is coming at a financial cost. Fierce market competition has pushed prices down so far that manufacturers are struggling to survive, risking the long-term health of the sector. As clean energy becomes a cornerstone of China’s industrial strategy, the balance between economic growth and environmental sustainability will be tested. Globally, China’s choices shape the future of renewable energy supply chains, battery production, and climate outcomes.
Learn more: China pivots toward renewable energy in global investments
A team of international scientists circumnavigating Antarctica has documented widespread environmental decline, including microplastics in ice and seawater, receding glaciers, and falling ocean salinity.
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Key quote:
“Microplastics were visible when seawater was passed through a kind of strainer; they could even be seen through the camera lens.”
— Venisse Schossler, climatologist and mission coordinator
Why this matters:
Antarctica may seem remote, but its role in regulating the planet’s climate is immediate and vital. Its ice sheets help stabilize sea levels, and its cold waters serve as a massive carbon sink, absorbing heat and CO₂ from the atmosphere. As microplastics accumulate and glaciers melt faster, the Southern Ocean’s salinity and acidity are shifting, stressing marine life and weakening its capacity to buffer climate change. Disruption to phytoplankton — the foundation of ocean food webs and a major oxygen producer — has ripple effects throughout global ecosystems. Meanwhile, soot from Amazon fires, transported by high-altitude winds, darkens Antarctic snow, speeding melt. These linked systems show how human activities in one region can destabilize life-supporting processes halfway across the planet.
Related: Plastic debris could carry invasive species to Antarctica, threatening ecosystems
Scientists and entrepreneurs are racing to reinvent agriculture to feed a booming population and fight climate change, but their high-tech solutions keep falling short.
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Key quote:
[We predict] “a tragic mismatch of global food supply and demand by mid-century. We are not on track to meet future food needs. Not even close.”
— 2025 open letter authored by more than a hundred Nobel laureates
Why this matters:
With agriculture already a top driver of climate change, the future of food is a health and environmental crisis in the making. And yet, the most boring answer might be the right one: eat less meat, stop throwing out nearly half our food, and make better use of what we already grow. It doesn’t sound revolutionary, but maybe that’s the point.
Read more:
As dangerous heat grips much of the country, a Biden-era plan to shield outdoor workers from heat illness is stalling under the Trump administration.
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“I’ve had bosses who, if they see you resting for a few minutes under a tree to recover yourself, think you’re wasting your time and send you home without pay.”
— An unnamed worker interviewed by Investigate Midwest in 2023
Why this matters:
As climate change drives longer and more intense heat waves, outdoor workers, especially in agriculture, are paying the price. Without enforceable federal heat protections, farm laborers often lack the right to rest, hydrate, or even receive basic training on how to recognize signs of heat stroke. This lack of oversight leaves thousands vulnerable to illness or death, particularly immigrant and low-wage workers already marginalized in the labor system. Heat exposure also compounds risks from other environmental stressors like pesticides, further harming worker health. Political efforts to weaken or delay regulation threaten to strip protections just as the science shows that such safeguards are urgently needed. As summers grow hotter, this is a growing labor, public health, and environmental justice issue.
Read more: Heat protections for workers stall as summer temperatures soar
California’s push to cut truck pollution and electrify freight fleets faces legal and political setbacks under President Trump, threatening public health in polluted regions like the San Joaquin Valley.
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“There’s no question that the transition away from combustion trucks to zero-emission would save lives, prevent asthma attacks, and generate significant, significant public health benefits all around the state.”
— Will Barrett, senior director for nationwide clean air advocacy, American Lung Association
Why this matters:
The diesel trucks that keep America’s goods moving also pour nitrogen oxides and particulate matter into the air, especially in transportation corridors like California’s San Joaquin Valley. These emissions worsen asthma and lung disease and contribute to smog and climate change. While zero-emission trucks offer a path to cleaner air, the technology faces steep economic and political hurdles. Under Trump, the federal government has moved to block California’s authority to enforce clean truck rules — a blow to efforts that protect vulnerable communities from chronic exposure to toxic exhaust. Without federal support, state-led clean air efforts are harder to enforce, and public health gains become less certain.
Read more: California backs off electric truck mandate but offers incentives
As the world races to secure rare earth elements for tech and defense, residents of Baotou, China bear the brunt of toxic pollution and displacement.
In short:
Key quote:
"Large-scale extraction quite often proceeds at the expense of the health and well-being of surrounding communities, pretty much regardless of the context."
— Julie Klinger, associate professor at the University of Delaware
Why this matters:
China calls Baotou its “rare earth capital,” and it’s not exaggerating. More than 80% of the country’s known reserves are extracted and processed here. But what’s left behind after the magnets and metals are separated is an environmental nightmare — tailings ponds leaking toxics substances, and ghost towns where farms once fed generations. While Beijing talks up cleanup efforts and green growth, those living closest to the waste say the truth is much dirtier. Global tech giants and defense contractors rely on Baotou, but its people are paying with their health. The rest of the world rarely looks backRead more: In push to mine for minerals, clean energy advocates ask what going green really means
Once-lifeless streams across West Virginia are being revived by community-led efforts to treat coal mine pollution, which is now also yielding valuable rare earth metals.
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Key quote:
“If we look to the future, coal is a much smaller part of the overall energy picture in the country and it’s unlikely to ever regain the same level that it once had.”
— Dave Bassage, program coordinator at New River Conservancy
Why this matters:
Acid mine drainage is a persistent legacy of coal mining that continues to contaminate streams and groundwater across Appalachia. It forms when exposed pyrite reacts with air and water to create sulfuric acid, dissolving toxic metals into waterways. The result is not just ecological damage — it also threatens drinking water for rural communities and corrodes infrastructure. But the same pollution causing these problems is now a potential source of rare earth elements, essential for solar panels, electric vehicles, and national defense. With global supply chains under strain, tapping into this accidental resource could be economically and environmentally significant, especially for communities long burdened by extractive industries.
Read more: Coal mine pollution in Canada and the U.S. faces international review
One facility has emitted cancer-causing chemicals into waterways at levels up to 520% higher than legal limits.
“They're terrorizing these scientists because they want to keep them silent.”
"The reality is, we are not exposed to one chemical at a time.”
A new report assesses the administration’s progress and makes new recommendations
“We cannot stand by and allow this to happen. We need to hold this administration accountable.”
“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.