Three years left to limit warming to 1.5C, leading scientists warn
a year ago
- #global warming
- #carbon emissions
- #climate change
- The Earth could breach the 1.5C warming limit in as little as three years at current CO2 emission levels.
- Nearly 200 countries agreed in 2015 to limit global temperature rises to 1.5C to avoid the worst impacts of climate change.
- Continued burning of fossil fuels and deforestation have put the 1.5C goal in peril.
- The 'carbon budget' for a 50% chance of staying below 1.5C has shrunk to 130 billion tonnes by 2025.
- Current CO2 emissions of about 40 billion tonnes per year could exhaust the carbon budget in roughly three years.
- Human-caused warming reached 1.36C above pre-industrial levels in 2023, with a current warming rate of 0.27C per decade.
- The planet is on track to reach 1.5C of warming by around 2030 if emissions remain high.
- The rate of heating in the Earth's climate system has more than doubled since the 1970s and 1980s.
- About 90% of excess heat is absorbed by oceans, leading to higher sea levels and disruption to marine life.
- The rate of global sea-level rise has doubled since the 1990s, increasing flooding risks for coastal populations.
- Rapid and stringent emissions cuts are crucial to mitigate further warming and its impacts.
- Every fraction of warming avoided reduces harm, particularly for vulnerable populations.