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Who says the climate's changing?

In 2007 a panel of climate experts from over 100 countries delivered the most authoritative report yet on the science of climate change.

Having assessed the best available information from around the world, the Intergovernmental Panel on Climate Change (IPCC) concluded with 'very high confidence' that greenhouse gas emissions from human activities are causing the planet to warm up.

But what evidence did they base their conclusions on?



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Scientists are convinced - human activities are affecting the Earth
Scientists are convinced - human activities are affecting the Earth's climate system.
Source: Wikimedia Commons
    
 

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