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Environment

Ocean heat could supply essentially endless clean energy to islands

An old idea to use ocean heat to generate clean electricity has long failed to gain traction, but the technology – known as ocean thermal energy conversion (OTEC) – is seeing a resurgence of interest from islands dependent on fossil fuels

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gas pipeline

Environment

Hydrogen is a green fuel despite small warming effect from pipe leaks

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2FM0KRW Aerial of heat sink type modern housing estate with private roads Kellyville Western Sydney Australia.

Environment

What South Australia can teach the world about cutting carbon fast

Leader

Environment

Can we get limitless green hydrogen by splitting seawater?

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Australia, Northern Territory, Hermannsburg, Solar Power Generating Station in Outback

Environment

How countries can go fossil fuel free with wind and solar superpowers

Features

Technology

Energy-guzzling data centres could work just as well with less cooling

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Electrical energy

Technology

Tiny generator uses the motion of molecules to produce electricity

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Technology

Should we be worried about AI's growing energy use?

Analysis

Environment

Global power sector has almost hit peak greenhouse gas emissions

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Environment

Why China's clean energy tech will determine our climate future

China is both the world’s biggest carbon emitter and the largest producer of clean energy tech. Its choices in navigating this paradoxical role may determine the future of the entire planet

Insight

Environment

Renewable energy boom may help us limit warming this century to 1.5 ̊C

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Environment

How geologic hydrogen went from fringe science to potential green fuel

Analysis

Space

Dark stars: Have we finally found a weird sun powered by dark matter?

Features

Environment

Can massive solar power expansion regenerate the US’s iconic prairies?

Features