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Environment

First test of CO2 removal with green sand finds no harm to marine life

Adding olivine to the ocean could remove CO2 from the atmosphere, and a pilot project in New York state found no signs of adverse effects on seafloor organisms

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Environment

Will burying dead trees after a wildfire keep their carbon locked up?

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Environment

Carbon credits are flawed, but they can still help save forests

Analysis

Environment

Spreading crushed rock on farms could absorb 1 billion tonnes of CO2

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Life

Ants capture carbon dioxide from the air and turn it into armour

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Environment

Ocean geoengineering trial finds no evidence of harm to marine life

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The 5 worst ideas of the 21st century – and how they went wrong

Humans

The 5 worst ideas of the 21st century – and how they went wrong

Features

A on pump transforms into a judge's gavel

Environment

The secret weapon that could finally force climate action

Features

Environment

EU carbon border tax will force others to cut emissions from 2026

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Environment

How green hydrogen could power industries from steel-making to farming

Many industries are eyeing up hydrogen as a source of clean energy, but with supplies of green hydrogen limited, we should prioritise the areas where it could have the most positive impact on carbon emissions, say researchers

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Environment

China's carbon emissions may have started to fall in 2025

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Environment

Africa’s forests are now emitting more CO2 than they absorb

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Environment

CO2 levels in Earth's atmosphere jumped by a record amount in 2024

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Environment

One of Earth’s most vital carbon sinks is faltering. Can we save it?

Features