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Temperature-driven clock sparks new kind of generator

Technology

Temperature-driven clock sparks new kind of generator

Inspired by a 1920s clock that harnessed changes in the volume of a gas as it heats and cools, researchers may be able to power sensors cheaply for decades

News

China clamps down on dirtiest coal to curb pollution

Earth

China clamps down on dirtiest coal to curb pollution

News

$Leaky wells, not fracking, polluted US drinking water$

Earth

Leaky wells, not fracking, polluted US drinking water

News

Urban wastelands worth millions for what they give us

Earth

Urban wastelands worth millions for what they give us

News

Space

Water-splitter could make hydrogen fuel on Mars

News

Earth

Want to grow the UK economy? Invest in green energy

News

'Reckless' BP faces $18bn fine for Deepwater oil spill

Earth

'Reckless' BP faces $18bn fine for Deepwater oil spill

News

Race to electrify rural Africa could help the West too

Technology

Race to electrify rural Africa could help the West too

Analysis

Earth electric: Harnessing our planet's low glow

Earth

Earth electric: Harnessing our planet's low glow

Features

How many motors can NASA cram on its fryer-oil flier?

Technology

How many motors can NASA cram on its fryer-oil flier?

NASA's grease-fuelled hybrid aircraft seems to have been inspired by a magical movie car

Regulars

Earth

Beijing's coal ban may herald the end of the fuel

News

Earth

Massive smart light lab tests tech to slash emissions

News

World's poor need grid power, not just solar panels

Comment

Earth

UK's national parks may not be safe from fracking

News