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Brazil hit hard by worst drought since 1930

Earth

Brazil hit hard by worst drought since 1930

Four million people in Brazil's south-east powerhouse have been hit by water rationing and blackouts in the country's worst drought on record

News

Ozone hole: How we are misled in the fight to cut smog

Earth

Ozone hole: How we are misled in the fight to cut smog

Comment

Shocking state of world's riskiest nuclear waste site

Earth

Shocking state of world's riskiest nuclear waste site

News

Keystone XL pipeline inches closer – but may yet fail

Earth

Keystone XL pipeline inches closer – but may yet fail

News

Over a barrel? Falling oil prices and the environment

Earth

Over a barrel? Falling oil prices and the environment

Comment

Earth

How much oil must stay buried to avert 2 °C warming?

News

Seven megaprojects that would change the world

Earth

Seven megaprojects that would change the world

Features

Keep snuggly warm with self-heating nanowire clothes

Technology

Keep snuggly warm with self-heating nanowire clothes

News

Paris says 'non' to diesel in anti-pollution push

Earth

Paris says 'non' to diesel in anti-pollution push

News

Total safety an illusion for Japan's nuclear restart

Earth

Total safety an illusion for Japan's nuclear restart

Some Japanese nuclear reactors, mothballed since the 2011 Tohoku quake, may soon restart. But nature can outpace new safety precautions, warns a geophysicist

Comment

Earth

US and China's emission cuts may not be enough

Analysis

Earth

Should we all get out of fossil fuels now?

Comment

Earth

Republican win corners Obama in key US climate battle

Comment

Technology

I want to build solar cells thinner than a human hair

Opinion