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It could be done at no added cost from previous estimates, and reduce GDP by just 1-2%, a report says.

The Welsh and Scottish governments have also declared an emergency - along with dozens of towns and cities.

Scientists find evidence an ancient human species called a Denisovan lived at high altitudes in Tibet.

High Court judges rule in favour of the government's decision to approve airport expansion plans.

Researchers collected samples from rivers in Suffolk and found the drug when testing for chemicals.

Four common concerns about electric cars explained.

A group of locals are the only thing preventing human-elephant conflict in a deforested area of Indonesian rainforest.

As Indonesian orangutans come into closer contact with humans, they are at increasing risk of capture.

Extinction Rebellion says the environment secretary refused declare a climate emergency.

The environment secretary agrees with some of Extinction Rebellion's demands, but says there are "open questions" about the timescale for action.

Part of the world's largest ice shelf is melting 10 times faster than the rest, shedding light on how it might respond to climate change.

Writer and explorer Robert MacFarlane explores the "underland" beneath our feet.

The government's plan to ban the sale of petrol and diesel cars by 2040 is too tame, its advisers will say.

A woman from Mongolia has won the Goldman Environmental Prize after a campaign to stop mining firms destroying a critical habitat for snow leopards.

Keeping soil in good condition is key to keeping carbon locked away, and it's possible cows can help.

There's three times more carbon in the soil than in the atmosphere - and deforestation is releasing it.

Natascha Engel says the government's approach to fracking has created a de facto ban on it.

Critical scientific assessment of humanity's impact on nature to be released after Paris negotiations.

The London race aims to reduce waste with paper cups, fewer drinks and even edible seaweed energy capsules.

The oceans contain almost 200,000 different viral populations, according to the latest count.

The different methods scientists use to measure cosmic expansion fundamentally disagree with each other.

The Hayabusa-2 spacecraft sends back images of the crater made when it detonated an explosive charge on the asteroid it is exploring.

Sir David Attenborough says the restoration of the wetlands is a "unique opportunity" for wildlife.

600 scientists call on the EU to make trade with Brazil more sustainable to protect the planet.

Three noisy falcon chicks hungry for food reveal themselves in a cathedral spire nest.

After severe weather in 2016 a large penguin colony at the Brunt ice shelf in Antarctica never recovered.

Forests in tropical regions are disappearing at the rate of 30 football fields a minute, say researchers.

Global pork prices could rise sharply as African swine fever decimates China's pig population.

The second largest emperor penguin colony in Antarctica disappears, satellite images show.

The technology could eventually help those who have lost their voice to speak again.

Colliery tips are home to hundreds of rare species of bugs - including some unique finds - say scientists.

It is the first seismic signal ever detected on the surface of a body other than Earth and its Moon.

Teenage climate activist Greta Thunberg tells UK politicians a generation's future has been "stolen".

Teenage activist Greta Thunberg has an uncompromising message on climate change.

Each year billions end up in landfill, but engineers have come up with a way to recover the plastic and other materials inside them.

A closer look at Extinction Rebellion's demands and how the government might try to achieve them.

Supporters say they can make it easier for people in rural areas to get around.

UK sees longest continuous period without generating electricity from coal as temperatures soar.

There are plans to launch a manned mission to the International Space Station later this year.

A new campaign says we should pay less tax on plants because they are good for the environment and mental health.

It is their "beauty of colour and space that makes me keep coming back", artist says.

Actress Dame Emma Thompson defends her decision to fly to London from the US to attend a climate change protest.

The BBC's Climate Change - The Facts, presented by Sir David Attenborough, is praised by TV critics.

Chris Skipper has been photographing urban peregrines nesting at Norwich Cathedral for nearly a decade.

Police rest days are cancelled as more than 1,000 officers are deployed in London.

The veteran naturalist's BBC programme on climate change is his strongest warning yet on the threat of rising temperatures.

The bones of the huge creature belong to a new species which roamed east Africa 20 million years ago.

Tests on a bone, found in West Sussex, show for the first time the animal was alive in the first century AD.

A team of conservators are working to breathe new life into a collection of Buddha statues destroyed by the Taliban

Four Extinction Rebellion campaigners glued themselves together outside the Labour leader's home.