In these Letters to the Times, I and others rebut Dean Spears's lament about world population peaking at 10 billion 60 years from now and then declining to 8 billion (where we are today) by 2100.  I argue that a retreat from population growth could be the best thing to happen to our ravaged planet.

Along with their tragic human impacts, wars such as Russia's assault on Ukraine exact a devastating toll on our global environment. Here I argue that nations should be held accountable for the climate impacts of their military arsenals & operations.

Russia's use of the Zaporizhzhia power plant as a defensive shield should cause us to think very carefully before embracing nuclear power as part of a global arsenal to combat climate change. Scroll down to see my letter.

For decades, above-ground renewables like wind & solar have captured public attention & policymakers' zeal. It's time to recognize the key role geothermal heating and cooling can play in cutting carbon emissions.

This article takes a crack at demystifying fusion power, gauging its current status and grappling with the hurdles that continue to confound its proponents.