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Maize in the sun

Life

Brighter sky helped boost US crop yields – but it may not last

Some 27 per cent of the rise in maize yields over the last 30 years may be down to clearer skies and more sunshine hitting the fields, not better technology

News

Power station chimney

Earth

UK’s CO₂ emissions lowest since 19th century as coal use falls

News

Deepwater Horizon oil spill

Earth

Sponge can soak up and release spilled oil hundreds of times

News

Artificial mouse embryo

Health

Artificial embryo grown in a dish from two types of stem cells

News

phones

Technology

Technoaddicts: turn on, touch in, swipe out

Culture

volcano picture

Earth

Volcanoes: Oxford exhibition gives the fiery inside story

Culture

Spraying fertiliser on wheat

Earth

A loaf of bread emits half a kilo of CO₂, mainly from fertiliser

News

Chinese fantasy and sci-fi conference

In China, this is science fiction's golden age

Culture

Floating woman writing at a typewriter

Winning words: Write us a sci-fi masterpiece in 48 hours

Culture

A cigarette

Health

Having a cigarette may make your body crave coffee too

People who smoke may metabolise caffeine differently to non-smokers, leaving them needing to drink more to get the same hit from their coffee

News

Technology

Strange futures, with air islands and dung radios

Culture

Earth

There's no such thing as 'clean coal' – it’s dirty and expensive

Analysis

Earth

The EU’s renewable energy policy is making global warming worse

News

Life

HIV vaccine therapy lets five people control virus without drugs

News