Amplified warming of extreme temperatures over tropical land

Extreme temperatures have warmed substantially over recent decades and are projected to continue warming in response future climate change. Warming of extreme is amplified land, with severe implications for human health, wildfire risk food production. Using simulations from 18 models, I show that hot days tropical land warm more than the average day. For example, hottest 5% a factor 1.21 ± 0.07 larger time-mean averaged across models. The change interpreted using theory based on atmospheric dynamics. According theory, because those dry, which termed ‘drier get hotter’ mechanism. Changes near-surface relative humidity further increase warming, decreases being particularly important. advances physical understanding highlights surface dryness as key determining how respond