Science, Technology, and Public Policy

Carbon capture, utilization, and storage (CCUS) is very likely to be a key technology for achieving the Biden administration's goal of net-zero greenhouse gas emissions by 2050. But absent regulation requiring its use, CCUS needs to become more economical in order for deployment in the United States to expand significantly.

What was accomplished? COP26 created pressure for some countries to produce revised  Nationally Determined Contributions, helped catalyze new pledges to reduce emissions (including from India), led to the approval of the rules to govern international cooperation and carbon markets (the Paris Rulebook) addressing the issue of double counting, and served as the Launchpad for some novel initiatives that could play a useful role. Among the announcements that were made, was one that recognizes the importance of strategic investment and government action to lower the cost of technologies to reach carbon neutrality.

Joel Clement writes that because the Biden administration  has moved to repair the damage done by the Trump administration, colleagues from around the global Arctic are optimistic once again about partnering with America on solutions to regional crises .

Kelly Sims Gallagher asserts that politicians' pledges of dramatic long-term reductions should not let them off the hook for their failure to achieve more modest progress in the short term.

Joel Clement details the concerns surrounding the use of solar geoengineering to mask the effects of climate change and argues for using existing technology to quickly transition away from fossil fuels.

Joel Clement outlines why he is vexed by global negligence with regards to investments in the fossil fuel industry.

There is an urgent need to incorporate the latest science on carbon emissions from permafrost thaw and northern wildfires into international consideration of how much more aggressively societal emissions must be reduced to address the global climate crisis.

John P. Holdren writes that because of the huge potential importance of the evidence of global climate change for policy and for human well-being on the largest scale, moreover, its details and its conclusions have been scrutinized and re-scrutinized to a staggering degree. It was the conclusions based on this evidence, made even more robust by the continuing growth of climate-related damages in the ensuing years, that motivated 195 countries  to sign the Paris Agreement in December 2015. The science was rightly considered "settled enough."

In the face of advancing impacts of climate change — fires, smoke, floods, droughts, storms, and heat— Lara Hansen and Joel Clement argue for changing the way the country does business in every facet of the economy, with an eye toward reducing risk, increasing resilience, and ensuring equity and justice.

In comparing the first 100 days in office of Presidents Biden and Trump, Joel Clement writes that the comparison comes down to one question — did the president move the needle in the first 100 days?