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What is climate change? A really simple guide.

Human activities have increased carbon dioxide (CO2) emissions, driving up temperatures. Extreme weather and melting polar ice are among the possible effects.

What is climate change?

What is climate change?

Climate is the average weather in a place over many years. Climate change is a shift in those average conditions. The Earth is now in a period of rapid climate change, with global temperatures rising.

What will climate change mean?


Climate change will transform the way we live, causing water shortages and making it harder to produce food. Some regions could become dangerously hot and others uninhabitable because of rising sea levels. Extreme weather events - like heatwaves, downpours and storms - will become more frequent and intense, threatening lives and livelihoods. [continue]