Science, Technology, and Public Policy

David W. Kearn argues that deployment of nuclear weapons cannot rectify a perceived imbalance in conventional forces in the western Pacific.

Pakistan’s floods of 2022 were the latest, and most damaging yet, addition to the long history of floods in the country. As the muddy waters slowly recede, the need for speeding up action to face future floods stands clear.

The newly elevated "Major Questions Doctrine" of the Supreme Court's conservative majority puts a vast array of environmental and business regulations at risk, writes John Holdren.

Institutional reforms are key to China tackling climate change. More are needed to secure a low-carbon future, write Henry Lee and Daniel Schrag.

The powerful effects of artificial intelligence are already being felt in business, politics, medicine, war, and almost every other domain of twenty-first century life. For all of its positive potential, the technology presents significant risks that are best addressed sooner rather than later.

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.

David Keith argues that either or both carbon removal or solar geoengineering  is needed to cool the planet this century. There are no other options.

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 writes that while climate change is a scientific matter, climate action is a political one, and, if done right, can usher in dramatic social, economic and ecological improvements.

Joel Clement describes the influence of U.S. Senators Lisa Murkowski and Joe Manchin over the Department of the Interior and advises that a forward-looking legislator in a fossil-fuel state would be wise to fight aggressively for financial commitments to make the people in their state part of the vanguard of the new clean energy economy, rather than set back the U.S. economy by fighting the inevitable energy transition itself.