Countries are gathering in Brazil at the COP30 summit to take stock of climate change. As in past summits, the negotiations are starting on the back foot: countries already aren't meeting their goals ...

The world is producing too much coal, oil and natural gas to meet the targets set 10 years ago under the Paris Agreement, in which countries agreed to limit climate pollution and avoid the worst ...

Have you ever stopped to wonder how forecasters can predict the weather days in advance, or how scientists figure out how the climate might evolve under different policies? The Earth system is a vast ...