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The likelihood of crossing a key global warming threshold has risen significantly, according to a new analysis. UK Met Office researchers say that there’s now around a fifty-fifty chance that the world will warm by more than 1.5C over the next five years. Such a rise would be temporary, but researchers are concerned about the overall direction of temperatures. 

It’s almost certain that 2022-2026 will see a record warmest year, they say.

The Met Office is the UK’s national meteorological service.

As levels of warming gases in the atmosphere have accrued rapidly over the past three decades, global temperatures have responded by rising in step. 

In 2015, the world’s average temperature first went 1C above the pre-industrial levels, which are generally thought of as the temperat...

Vast quantities of water have been detected in sediments that underlie a part of the West Antarctic ice sheet. The volume is equivalent to a reservoir that is several hundred metres deep. The water was detected below the Whillans Ice Stream, but its presence is likely replicated elsewhere across the White Continent. That being the case, it could be an important influence on how Antarctica reacts to a warmer world, researchers tell the journal Science this week.

Water at the base of glaciers and ice streams generally works to lubricate their movement. 

The transfer of water into or out of this deep reservoir has the potential therefore to either slow down or speed up ice flow.

Models that simulate future climate impacts will now have to account for it.

The detection was made...

A project to reintroduce seagrass in Plymouth Sound has seen only 6% of seeds germinated. The National Marine Aquarium said it was now switching to seedlings already growing on matting to increase yields. Seagrass is seen as a way of fighting climate change by absorbing carbon dioxide from the atmosphere.

Thousands of seed bags were dropped onto the sea floor in 2021 in a £2.5m project to grow eight hectares (80,000 sq m) of meadow in Devon and Hampshire.

But the seeds became lost or buried by tides, said Mark Parry from the National Marine Aquarium in Plymouth.

“The idea is that we germinate the seeds in a closed environment where we can tightly control those conditions,” he said.

“We get a higher germination rate, we allow them to develop their roots and the rhizomes to spr...

Palau’s waters contain some of the world’s richest marine biodiversity. Critically endangered hawksbill turtles and endangered Napoleon wrasse, which can grow up to six feet long and are known for the distinctive bulge on their foreheads, cruise through reefs home to hundreds of species of coral.

The country, an archipelago of over 300 pristine tropical islands popping up out of the Pacific, has tried hard to protect its natural gifts. In 2009, it forbade the commercial fishing of sharks, creating the world’s first national shark sanctuary. Species like dugongs and bumphead parrotfish are protected...

With its durability and transfixing swirl of translucent amber and brown layers, tortoiseshell has been used for centuries to make everything from jewelry to combs to dishware.

“It was plastic before plastic was invented because it’s so malleable,” says Brad Nahill, co-founder and president of turtle conservation group SEE Turtles and a National Geographic Explorer.

Tortoiseshell does not come from tortoises. It almost exclusively comes from the critically endangered hawksbill turtle. Between 1884 and 1992, data show, at least nine million hawksbills were killed and sold for their shells. Today, fewer than 25,000 breeding females remain globally, and its international commercial trade is banned.

Nahill’s group is leading an effort to use modern technology to combat the illi...

Coral species exhibit different temperature tolerances. This is in part due to the composition of their microalgae symbionts. With a new method, researchers from Uppsala University were able to predict how individual microalgae might behave under future temperature stress and identify more tolerant coral symbionts. In combination with forthcoming single cell selection and growth experiments, the identification of climate resilient cells provides opportunity to help mitigate the effects of coral bleaching.

Coral reefs provide sustenance and income to an estimated half billion people, attract tourists, protect coastlines and are among the most biodiverse ecosystems on our planet. Despite their importance, more than half of the world’s coral reefs are now under stress, primarily due to cl...

Krista Sherman understands ocean conservation work takes a good deal of patience. But the Bahamian-born marine scientist had never encountered a foe like stony coral tissue loss disease (SCTLD), and after efforts to monitor and treat the highly contagious outbreak in the Bahamas’ corals stalled, her patience was running thin.

“The disease is spreading really quickly. In some areas where we’ve been able to assess the rate of spread, we’re looking at a mile a month,” says Sherman, a researcher with the Bahamas-based Perry Institute for Marine Science.

“There’s a shift taking place at some sites, from healthy, vibrant reefs to what looks like a coral graveyard. And it’s really devastating to see; it’s just heartbreaking.”

First discovered in Florida in 2014, the ...

A dozen scientists, politicians, and campaigners say they have been tricked into participating in online events promoting climate-change denial. The events were organised by the Creative Society, an international activist group that denies global warming is being caused by human activity. The overwhelming majority of scientists agree greenhouse gases – which trap the Sun’s heat – are causing a rise in global temperatures.

But the Creative Society alleges, without any credible evidence, a conspiracy and condemns what it calls the “CO2 fraud”.

The group told BBC News it “provides a platform for all ideas to be expressed” and rejected allegations it tricked anyone into participating in its events.

From ‘cosmic pulses’ to ‘corrupted scientists’

The Creative Society says it has su...

A marine biologist who swims with 20-foot sharks says people’s perception of them being bloodthirsty predators is nothing but a common myth. Professional shark diver Kayleigh Nicole Grant, 34, who has been based in Hawaii for the last 10 years says the magnificent animals are incredibly shy and wary of human contact.

Stunning underwater shots show a calm Kayleigh getting terrifyingly close to great whites and tiger sharks who happily dance around her. With her incredible footage, she hopes to change people’s perceptions and explains how sharks attacks are still incredibly rare.

She revealed to The Sun Online how these beasts are often harmless and that reading their body language is key to staying safe.

Kayleigh said: “There is nothing quite like sharing space and coexistin...

The carbon-cutting promises made at COP26 would see the world warm by just under 2C this century, according to a new analysis. The study finds that if all the pledges made by countries are implemented “in full and on time”, temperatures would rise by 1.9-2C. However, there is far grimmer news on the idea of keeping warming under 1.5C. The paper finds there is just a 6-10% chance of staying under this key threshold.

When political leaders met in Glasgow last November, many of them brought new and improved plans to reduce their carbon emissions. 

Others, such as India, announced new, long-term targets to bring their CO2 output to net zero.

The focus of the meeting was to try to improve the pledges so that global temperatures this century don’t rise by more than 1...