Tropics will be among last places to benefit if global greenhouse gas emissions cut to net zero
Summary
New research shows that tropical regions will be the last to benefit from global efforts to reduce greenhouse gas emissions to net zero. Despite reaching net zero, these areas, often poorer and near the equator, will continue to experience more warming for many decades, while richer, wealthier countries see less impact.Key Facts
- Tropical areas have warmed more compared to their historical average than higher latitude regions.
- Reaching net zero emissions means balancing emitted greenhouse gases with removal, but the damage in tropical regions will persist for decades.
- Wealthier countries have caused most warming but face less temperature increase than poorer tropical countries.
- Tropical ecosystems, like coral reefs, are more sensitive to temperature changes and will stay affected longer.
- The UN refugee agency reported that climate change increases risks of people becoming stateless, especially in low-lying Pacific islands losing land to rising seas.
- About 4.5 million people are officially stateless, but the real number is likely higher due to lack of records.
- Recommendations include supporting countries to protect citizenship rights and digitize records to help displaced people maintain legal identity.
- Protecting children’s citizenship rights after climate disasters is important, especially when mothers have restricted rights to pass nationality.
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