Soaking up storms

In many cities most of the ground is covered by concrete, so it cannot absorb heavy rain. The water spills down streets and overloads drainage systems, creating floods of stormwater and sewage. Parks and other green spaces—this is Central Park in New York —soak up rainwater and help prevent such flooding.

Metal buildings provide temporary shelter for the farmers

CLIMATE CAMPAIGNS

Since the dangers of climate change were first recognized, ordinary people all over the world have campaigned for urgent action by governments. They have written to political leaders, signed petitions, given financial support to pressure groups, and staged mass protests and marches like this one in London in 2006.

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