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What is climate change?
Tomorrow's Climate, Today's Challenge

What is climate change?

Climate change or global warming is caused by increased levels of carbon dioxide (CO2) and other polluting gases in our atmosphere.

The gases trap heat by forming a blanket around the Earth - like the glass of a greenhouse. The greenhouse gases stay in the atmosphere for many years. As they build up, the planet's temperature rises.

Heat from the sun is trapped by gases in our atmosphere

Heat from the Sun (a) is trapped by the gases in our atmosphere (b)


What cause greenhouse gases?

Greenhouse gases are released by burning fossil fuels - coal, oil and gas. These fuels are used in industry, cars and aeroplanes and for heating our homes and businesses


The effects of climate change

If we don’t take action, we’ll see freakier weather every year. Millions in the UK will be at risk of flooding. Billions worldwide will face droughts and violent storms. The world’s poor will be the worst hit and we could lose some of our favourite wildlife species too.

Did you know?
The heatwave in Europe in 2003 killed 25,000 people. Scientists predict that this kind of summer will be the norm by 2050.



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