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Build the Change Tuesday

Why snails and flies need your help now

Five amazing new animals found in one year

The ‘tree’ that could light up your home

The calf that could save an entire species

World leaders gather for huge climate meeting

The weird and wonderful ways to go waste free

Kenyans given special holiday to plant trees

Prince names winners of top climate prize

‘Air-con’ could save fish from warm rivers

The children who rebuilt their school for bugs

‘Sponge’ cities could stop flooding for good

Why Britain’s wildlife needs our help now

The race to become the world’s greenest city

Mountain bridge made for people and animals

Robots trained to bring back coral reefs

The American town built to weather the storm