Environment & Climate
Scientists warn of accelerating climate risks as global temperatures continue to rise
Researchers emphasize that extreme weather events and ecological tipping points are manifesting faster than past climate models anticipated.
The short version
- Earth's global average temperature in 2025 was 1.44 degrees Celsius above early 1800s levels, driving more intense weather extremes.
- Major ecological systems are reaching severe thresholds, including 84 percent of global corals experiencing heat-stress bleaching between 2023 and 2025.
- While climate scientists cannot predict the exact timing or location of specific severe weather catastrophes, they warn that systemic risks continue to build.
Key facts
- Earth's average global temperature in 2025 was 1.44 degrees Celsius (2.59 degrees Fahrenheit) higher than in the early 1800s.[Associated Press]
- Between 2023 and 2025, 84 percent of the world's coral reefs were affected by heat stress that expelled microscopic algae.[Associated Press]
- In the summer of 2022, parts of the U.K. surpassed 40 degrees Celsius, an outcome that a January 2022 U.K. Climate Risk Assessment had estimated had only a 0.02 percent chance of occurring before 2040.[Associated Press]
- Historically, the United States has released the largest cumulative volume of greenhouse gases among all countries.[Associated Press]
What remains uncertain
- Climate scientists note that the exact timing, severity, and geographic location of future catastrophic weather events cannot be predicted with certainty.[Associated Press]