(CNN) — The Earth’s temperature briefly rose above a crucial threshold that scientists have been warning for decades could have catastrophic and irreversible impacts on the planet and its ecosystems, ...

Climate is the average weather over many years. Weather, like one at bat in a baseball game, represents just one isolated data point. Climate, like a batting average over an entire season, takes all ...

For the first time since record keeping began, Earth has surpassed a critical temperature threshold that scientists have long warned could unleash the worst effects of climate change. On Friday, the ...