Global Warming: 3 Years Left on Carbon Budget, Scientists Warn

Climate Change Report Highlights

• 💡 An annual report by over 60 international climate scientists tracks key indicators of global climate change.
• 📈 Last year saw record high greenhouse gas emissions, leading to increased concentrations in the atmosphere and global warming.
• 🌡️ While last year's temperatures were exceptionally high, the underlying trend shows global warming currently stands at 1.36° above pre-industrial levels.

The Shrinking Carbon Budget

• ⏳ The world has approximately 3 years left before exhausting its carbon budget for limiting warming to 1.5°C.
• 📉 Current estimates suggest only about 130 billion tons of CO2 can be emitted to stay within the 1.5°C limit.
• 🌍 Last year's emissions were around 42 billion tons, highlighting the rapid depletion of this budget.

Paris Agreement and Policy Gaps

• 🎯 The Paris Agreement aims to limit warming well below 2°C, pursuing efforts for 1.5°C.
• 📝 While countries' pledges could limit warming to around 1.7°C, actual implemented policies still point towards 2.5°C to 3°C warming by the end of the century.
• ⚠️ Exceeding 1.5°C will lead to drastically increased impacts and damages to society.

Responsibility and Action Needed

• 🤝 Climate change is a collective problem requiring a collective solution, though some countries have contributed more historically.
• 📉 Developed nations with higher historical emissions and wealth are expected to lead emission reductions, but current reductions are insufficient.
• 🗣️ Countries are urged to submit ambitious new pledges and, crucially, to translate these pledges into concrete policies.
• 🛠️ Policies must focus on reducing energy use in housing, providing low-carbon transport, and transitioning the power system to produce reliable energy without climate pollution.

Reversing Warming and Future Outlook

• 🔬 While physically reversing warming by removing CO2 from the atmosphere is possible, it won't restore ecosystems already lost (e.g., coral reefs, pine ecosystems).
• ⚠️ The primary focus must remain on avoiding further global warming and reducing near-term greenhouse gas emissions as deeply as possible.
• 🌍 The physics of climate change are non-negotiable and will continue to progress, leading to increasing climate damages if emissions are not reduced.