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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

They offered so much promise, but ultimately turned sour. These are the most disappointing ideas since the turn of the millennium

Features

Earth

Volcanoes had lower greenhouse gas emissions in Earth's past

News

Environment

We must completely change the way we build homes to stay below 2°C

News

Wildfires in California in January 2025

Environment

Sooner-than-expected climate impacts could cost the world trillions

News

Aree Aupeia, 32, standing on the sea front near a house that gets regularly flooded during high tide events. The village is regularly flooded during high tides despite residents attempts to build sea walls or take care of those that were built by the local government, but frequent big waves continue to damage them, putting resident's houses, and gardens under the constant threat.

Environment

The Pacific Islanders fighting to save their homes from catastrophe

Features

Trees floating towards the Arctic Ocean

Environment

Sinking trees in Arctic Ocean could remove 1 billion tonnes of CO2

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Environment

Tree bark microbiome has important overlooked role in climate

News

A on pump transforms into a judge's gavel

Environment

The secret weapon that could finally force climate action

Features

Environment

US will need both carrots and sticks to reach net zero

News

Environment

Northern Greenland ice dome melted before and could melt again

The Prudhoe ice dome disappeared during a warm period 7000 years ago. Global warming could cause similar temperatures by 2100, showing the Greenland ice sheet’s vulnerability

News

Environment

El Niño was linked to famines in Europe in the early modern period

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Environment

The duo kite-skiing 4000 kilometres across Antarctica for science

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Environment

See how fire has changed the world's largest wetland, the Pantanal

Regulars

Environment

Alpine communities face uncertain future after 2025 glacier collapse

News