Great Barrier Reef: 30% of coral died in ‘catastrophic’ 2016 heatwave

Report chronicles ‘mass mortality’, the extent and severity of which has shocked scientists
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Paris agreement’s 1.5C target ‘only way’ to save coral reefs, Unesco says

First global assessment of climate change impact on world heritage-listed reefs says local efforts are ‘no longer sufficient’

Seven climate records set so far in 2016

Photo of record heat in India

From soaring temperatures in Alaska and India to Arctic sea ice melting and CO2 concentrations rising, this year is smashing records around the world

The Great Barrier Reef: a catastrophe laid bare

Australia’s natural wonder is in mortal danger. Bleaching caused by climate change has killed almost a quarter of its coral this year and many scientists believe it could be too late for the rest. Using exclusive photographs and new data, a Guardian special report investigates how the reef has been devastated – and what can be done to save it

Great Barrier Reef needs $10bn for chance of survival, scientists say

This election is Australia’s last chance to save the reef, which requires $1bn a year for 10 years to reduce water pollution to give it a chance to survive climate change, report warns