Some technologies could rapidly cut emissions, while others do little to fight climate change. The House bill favors the latter while nixing support for the former.

Park and forest managers can’t rely on the past any longer to understand future risks. Fires, pests and climate change are changing the game.

Even allowing warming to exceed 1.5°C for a few decades could trigger irreversible damage.

Fast-rising temperatures can change how plants and animals behave and disrupt the delicate timing of pollination.

The Trump administration’s goal is to roll back rules limiting planet-warming greenhouse gases emissions from power plants, vehicles and oil and gas production, but it could backfire for industry.

During the Cold War, the US poured support into Arctic military outposts and climate research amid fears of a Russian invasion. Climate change is still on the military’s radar as a threat multiplier.

Human-driven ocean warming is increasingly overwhelming El Niño, La Niña, and other natural climate patterns.

The oceans have been much warmer than average for the past two years, and the planet just set another global heat record. What’s going on?

The global ocean saw its hottest year on record by far for the second year in a row. What’s going on?

The answer depends on how you define ‘normal.’ The baseline has been creeping up as the planet warms.