US climate policy

Climate change can seem like an insurmountable challenge. However, if you look closely at its causes, you’ll realize that history is filled with similar health and environmental threats that humanity has overcome. The main cause of climate change – carbon dioxide from the burning of fossil fuels – is really just another pollutant. And countries know how to reduce harmful pollutants. They did it with the pesticide DDT, lead paint and the power plant emissions that were causing acid rain, among many others. In each of those cases, growing public outcry eventually led to policy changes, despite pushback from industry. Once pressured by laws and regulations, industries ramped up production of safer solutions. I am an earth and environmental scientist, and my latest book, “Reclaiming Our Planet,” explores history’s lessons in overcoming seemingly insurmountable hazards. Here are a few examples: Banning DDT despite industry pushback DDT was the f...

The planet is heating up as greenhouse gas emissions rise, contributing to extreme heat waves and once-unimaginable flooding. Yet despite the risks, countries’ policies are not on track to keep global warming in check. The problem isn’t a lack of technology. The International Energy Agency recently released a detailed analysis of the clean energy technology needed to lower greenhouse gas emissions to net zero globally by 2050. What’s needed, the IEA says, is significant government support to boost solar and wind power, electric vehicles, heat pumps and a variety of other technologies for a rapid energy transition. One politically popular tool for providing that government support is the subsidy. The U.S. government’s new Inflation Reduction Act is a multibillion-dollar example, packed with financial incentives to encourage people to buy electric vehicles, solar panels and more. But just how big do governments’ clean energy subsidies need to be to...

The European Union is embarking on an experiment that will expand its climate policies to imports for the first time. It’s called a carbon border adjustment, and it aims to level the playing field for the EU’s domestic producers by taxing energy-intensive imports like steel and cement that are high in greenhouse gas emissions but aren’t already covered by climate policies in their home countries. If the border adjustment works as planned, it could encourage the spread of climate policies around the world. But the EU plan – which members of the European Parliament preliminarily agreed to on Dec. 13, 2022 – as well as most attempts to evaluate the impact of such policies, is missing an important source of cross-border carbon flows: trade in fossil fuels themselves. As energy analysts, we decided to take a closer look at what including fossil fuels would mean. In a newly released paper, we analyzed the impact and found that including fossil fuels in...

As the U.S. prepares for another Trump administration, one area unambiguously in the incoming president’s crosshairs is climate policy. Although he has not released an official climate agenda, Donald Trump’s playbook from his last stint in the Oval Office and his frequent complaints about clean energy offer some clues to what’s ahead. Exiting the Paris climate agreement Less than six months into his first presidency, Trump in 2017 formally announced that he was withdrawing the United States from the Paris climate accord – the 2015 international agreement signed by nearly every country as a pledge to work toward keeping rising temperatures and other impacts of climate change in check. This time, a greater but underappreciated risk is that Trump will not stop at the Paris Agreement. Trump attends a session of the United Nations Climate Action Summit in 2019. When he announced he would pull the U.S. out of the Pari...