Governments and companies are embracing new emissions-reducing technologies that pull carbon dioxide out of the atmosphere. But it is uncertain whether this can work at the scale and in the time nece…

The Caribbean is already bearing the brunt of climate change. Governments in the region are taking steps to combat it, but are they enough?

International efforts, such as the Paris Agreement, aim to reduce greenhouse gas emissions. But experts say countries aren’t doing enough to limit dangerous global warming.

The U.S. Navy marks 248 years of service.

See how six countries are faring amid efforts to protect 30 percent of the planet’s land and waters by 2030, and what will be saved if they succeed. 

Each Friday, I look at what the presidential challengers are saying about foreign policy on the campaign trail.