The ocean is a carbon toilet. Marine heat waves are clogging it.

The planet would be a whole lot hotter if it weren’t for fecal pellets. Across the world’s oceans, tiny organisms known as phytoplankton harvest the sun’s energy, gobbling up carbon dioxide and releasing oxygen. They’re eaten by little animals called zooplankton, which poop out pellets that sink to the seafloor....

The kids who sued America over climate change aren’t done yet

In 2015, nearly two dozen American youth sued the federal government, alleging that the United States violated their constitutional rights by facilitating the burning of fossil fuels and allowing greenhouse gas emissions to rise to dangerous levels. Their case, known as Juliana v. U.S., was dismissed in federal courts, but...