In simple terms
Greenhouse gases change Earth’s energy balance, warming the atmosphere, oceans and land.
Why it matters
A relatively stable climate supports food production, freshwater availability, ecosystems, infrastructure and human wellbeing. Warming also interacts with nearly every other planetary boundary.
What puts pressure on it?
- Burning coal, oil and gas
- Land-use change and deforestation
- Agriculture and industrial processes
How scientists track it
- Atmospheric CO₂ concentration
- Earth’s energy imbalance
What helps
- Use less fossil energy where practical
- Choose lower-impact food and mobility options
- Support clean energy and nature protection
Planetary Boundaries are global guardrails. They are not personal quotas, and individual actions alone cannot restore them. Policy, infrastructure, business and collective change matter alongside household choices.