temperature

Pink blue and green corals under water

Scientists discover heat-tolerant corals hidden in plain sight

In new research, scientists discovered surprising new evidence of variable heat tolerance in corals. As the world’s oceans warm, these differences are important.

Surface air temperature anomaly for 2023 relative to the average for the 1991-2020 reference period. Data source: ERA5. Credit: C3S/ECMWF.

2023 is the hottest year on record

2023 is the hottest year on record, with global temperatures close to the 1.5°C limit with global average temperature of 14.98°C, 0.17°C higher than 2016, the last warmest year.