Medio ambiente
Medio ambiente
US announces sweeping cuts to power sector carbon emissions
25/04/2024
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President Joe Biden's government on Thursday finalized sweeping plans to curb planet-warming emissions from the nation's fossil fuel plants as part of the United States' efforts to confront the...
Africa's megacities threatened by heat, floods, disease—action needed to start greening, adapt to climate change
25/04/2024
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Cities cover just 3% of the planet. But they emit 78% of all global greenhouse gas emissions, absorb 80% of final global energy (what consumers use) and consume 60% of clean drinking water.
EPA says its new strict power plant rules will pass legal tests
25/04/2024
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The EPA on Thursday announced a series of actions to address pollution from fossil fuel power generators, including a final rule for existing coal-fired and new natural gas-fired plants that will...
The Download: introducing the Build issue
24/04/2024
A new electrochemical approach could reduce ocean acidity and remove carbon in the process
24/04/2024
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In the effort to combat the catastrophic impacts of global warming, we must accelerate carbon emissions reduction efforts and rapidly scale strategies to remove carbon dioxide (CO2) from the...
Planting trees in grasslands won't save the planet—instead, protect and restore forests
24/04/2024
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Tree planting is one of the nature-based solutions being used to offset greenhouse gas emissions. Trees absorb atmospheric carbon dioxide. Many of these tree planting projects target Africa's...
Estimating emissions potential of decommissioned gas wells from shale samples
23/04/2024
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Extracting natural gas from shale formations can provide an abundant, lower-carbon footprint fossil fuel, but also creates concerns over increased methane emissions. A team led by Penn State...
Aerogel-based phase change materials improve thermal management, reduce microwave emissions in electronic devices
23/04/2024
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Electronic devices are getting more and more complex as they are built to carry out an ever-increasing number of functions. This can be seen in the increased functionality in our personal devices...
Alkali-decorated microenvironments aid Cu single atom catalysts in CO? hydrogenation
22/04/2024
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Since the advent of industrial revolution, the accumulation of carbon dioxide (CO2) in the Earth's atmosphere has raised significant environmental and climate concerns. As a response to this pressing...
Climate impacts set to cut 2050 global GDP by nearly a fifth
21/04/2024
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Climate change caused by CO2 emissions already in the atmosphere will shrink global GDP in 2050 by about $38 trillion, or almost a fifth, no matter how aggressively humanity cuts carbon pollution,...
Scotland is ditching its flagship 2030 climate goal—why legally binding targets really matter
21/04/2024
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The Scottish government has rescinded its 2030 target of a 75% emissions cut to greenhouse gas emissions, relative to 1990. The target was statutory, meaning it had been set in law in the Emissions...
Using deep learning to image the Earth's planetary boundary layer
21/04/2024
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Although the troposphere is often thought of as the closest layer of the atmosphere to the Earth's surface, the planetary boundary layer (PBL)—the lowest layer of the troposphere—is actually the...
The Aral Sea has made Central Asia significantly dustier, according to study
18/04/2024
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The drying up of the Aral Sea has made Central Asia 7% dustier in the last 30 years. Between 1984 and 2015, dust emissions from the growing desert almost doubled from 14 to 27 million tons. This is...
Biden administration set to deny 200-mile Ambler mining road through Alaska wilderness
18/04/2024
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The U.S. Department of the Interior is expected to issue an environmental report that recommends denying a permit needed to build a 200-mile access road to the Ambler mining district, according to...
Scientists develop framework to measure plastic emissions and bolster U.N. efforts to reduce pollution
17/04/2024
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University of Toronto (U of T) scientists have developed a framework for measuring plastic pollution emissions akin to the global standard for measuring greenhouse gas emissions. The researchers say...
Analyzing isotopes for nitrate in sake for combating beverage fraud in Japan
17/04/2024
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The demand for sake, a Japanese alcoholic drink, has increased globally. However, the rise in the popularity of sake has the potential for related beverage fraud. To address this issue, researchers...
Decarbonization scenario model analyzes ambitious pathways to net-zero carbon emissions
17/04/2024
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While the world would love to have a quick fix, there is no one specific pathway to stop or slow the rate of climate change.
Study quantifies ecological restoration effectiveness on greenhouse gas emissions
16/04/2024
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Increasing atmospheric concentrations of greenhouse gases (GHGs) are having irreversible consequences for the future of the Earth. However, the general pattern of the impacts of ecological...
Most countries are struggling to meet climate pledges from 2009, emissions tracking study shows
16/04/2024
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Nineteen out of 34 countries surveyed failed to fully meet their 2020 climate commitments set 15 years ago in Copenhagen, according to a new study led by UCL researchers.
Reducing CO? emissions by 20% with only a 2% economic loss
15/04/2024
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A "rapid and far-reaching change" is necessary to prevent catastrophic climate change, according to the Intergovernmental Panel on Climate Change (IPCC). "However, the transformation...
Switch to green wastewater infrastructure could reduce emissions and provide huge savings, new research finds
15/04/2024
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University researchers have shown that a transition to green wastewater-treatment approaches in the U.S. that leverages the potential of carbon-financing could save a staggering $15.6 billion and...