Electric cars get a lot of hype, but what really matters for the climate are excess emissions from the many millions of gasoline vehicles still sold each year.
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Articles on Clean Air Act
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An appeals court described the EPA's effort as 'a series of tortured misreadings' of US law.
The Trump administration has used executive orders, deregulation and delays to reduce environmental regulation. Biden administration officials will use many of the same tools to undo their work.
According to a new study, about four in 10 air pollution deaths in the US are due to emissions crossing state lines.
George H.W. Bush, who pledged to be 'the environmental president,' took a market-based approach to pollution control that helped clear the air. Now some experts think it could work on climate change.
An air pollution expert with years of experience advising federal regulators describes how the Trump administration is speeding up reviews and reducing scientific input.
US ozone pollution has fallen in recent decades, but exposure to low levels of ozone still has serious effects on human health and well-being.
It's time Australian states took a lesson from US states when it comes to working around obstructive federal climate change policies.
Many people who live near large-scale livestock farms complain about noxious smells, air and water pollution and health risks. With little help from regulators, they are turning to lawsuits.
EPA Administrator Scott Pruitt has proposed steps that would reduce economic benefits to society from new regulations. An economist who worked for Presidents Clinton and Obama calls this a strategy to justify deregulation.
EPA Administrator Scott Pruitt wants to change the grounds for setting US air pollution targets. An environmental lawyer explains why Pruitt's approach misreads the law and could roll back decades of gains.
Air pollution could be the next battleground between California and the Trump administration, which is reviewing the Golden State's special legal authority to regulate tailpipe emissions.
An analysis of air pollutants from Texas shows how significant – and largely underregulated – the category of 'excess' emissions is across the US.
A recent study shows that large piles of coal produce measurable quantities of fine particulate air pollution within a 25-mile radius. Covering coal trains and storage piles could reduce the problem.
President Trump has ordered federal agencies to cut two regulations for every new one they enact – ignoring the fact that many regulations produce large social benefits.
Will the evidence finally convince polluted cities to clean up their act?
US President Barack Obama's new climate plan aims to cut greenhouse emissions from the nation's coal-dominated power sector by 32% by 2030. Will it get through, and how will it affect this year's climate talks?
Regulations that do significantly more harm than good are never appropriate, as the court concluded.
Top contributors
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Associate Professor of Public Policy, Harvard Kennedy School
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Associate Professor, School of Geography, The University of Melbourne
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Professor, School of Economics, The University of Queensland
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Director of the Centre for Energy and Natural Resources Law, Deakin Law School, Deakin University
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A/Prof., School of Earth Sciences, The University of Melbourne
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Professor Emeritus, Macquarie Business School, Macquarie University
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Research fellow, Centre for Policy Futures, The University of Queensland
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Research Associate at the Centre for Resources, Energy and Environmental Law, The University of Melbourne
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SEI Associate, Stockholm Environment Institute, University of York
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Research Professor Emeritus, University of Michigan
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Professor of Public and Environmental Affairs, Indiana University
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Distinguished Professor of Practice, Trachtenberg School of Public Policy & Public Administration, and Director of the Regulatory Studies Center, George Washington University
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Professor of Environmental Law, University of Maryland
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Assistant Professor of Resource Economics, University of Massachusetts Amherst
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Bloomberg Distinguished Professor of Economics and Business, Director of JHU's 21st Century Cities Initiative, Johns Hopkins University
