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Net zero, or carbon neutral, policies are changing the discussions around reducing greenhouse gas emissions. But, even with the wide adoption of the idea, questions remain. How much does the public understand about net zero? How is the policy defined, and what are its goals? Most significantly, is it addressing climate justice?

This week, the D.C. Circuit hears three cases challenging the use of federal regulations to push adoption of electric vehicles and to allow California to forge a path toward zero-emission cars. If all three cases go badly, the regulatory system would be disabled from playing a role in this area. This would be a huge setback, though there are reasons to think that it would only delay, rather than prevent, the transition to clean cars.

On May 23, the U.S. Environmental Protection Agency (EPA) released a proposed rule to regulate greenhouse gas emissions from power plants that run on fossil fuels. While these proposed standards are a good step forward and a much better approach to cutting climate pollution than the Trump administration’s misnamed "Affordable Clean Energy Rule," the EPA has room to strengthen them and greatly increase their climate and environmental justice benefits.

Early on July 28, the White House Council on Environmental Quality (CEQ) released the proposed Phase II revisions of its National Environmental Policy Act (NEPA) regulations. The CEQ proposal deftly threads the needle, streamlining the NEPA process while protecting the environment and disadvantaged communities.

The main reason to control carbon is to protect the climate. But cleaning up the energy system has plenty of other benefits. Those benefits will flow to people in rural areas as well as urban ones, to national security and international development, and to nature itself.

The federal Inflation Reduction Act and the U.S. Environmental Protection Agency's (EPA) most recent power plant rules are big wins for climate and the environment. However, they both have their shortcomings, and one of them is their reliance on carbon capture and storage technologies to reach ambitious climate emissions goals. As a new Center for Progressive Reform report shows, carbon capture technologies are unproven and pose significant risks, especially to communities in states like Louisiana that are already overburdened by pollution.

The scientific concept of net-zero emissions has quickly become an organizing policy paradigm, enshrined in the Paris Agreement and manifested in thousands of “net-zero” pledges developed by countries, states, cities, and private companies. Collectively, these pledges now purport to cover more than 91 percent of the global economy. If this figure sounds too good to be true, that’s because it likely is. Net zero is anti-democratic, inequitable, and imperial. For related reasons that I focus on in this post, it is also unlikely to work as a strategy to achieve the collective global aim of net-zero carbon emissions.

We’ve already started to hear claims that the Biden power plant rule falls under the major questions doctrine, which the U.S. Supreme Court used to strike down former President Obama’s Clean Power Plan. Are those claims plausible?

On May 1, the U.S. Supreme Court agreed to hear a case on whether the U.S. Department of Commerce has the authority to require fishermen to allow inspectors on board. At stake is the ability of agencies to write regulations that reasonably interpret laws even when they are ambiguous.