The sea gets warmer – the species die.
It’s not just coral reefs and fish that are threatened as the oceans warm – it’s all life.
Not since an asteroid wiped out the dinosaurs – along with at least half of all other creatures on Earth – has marine life been so vulnerable.
As the oceans get warmer, all habitats are threatened. There are species that do better than others, but all are affected. Biodiversity, the diversity of species, is threatened which in turn will affect us all.
Scientists and government agencies are closely monitoring developments in the Pacific Ocean. A new El Niño could lead to sharply rising temperatures and global heat records in the coming year.
New research shows that larger warm-blooded fish species, such as sharks and tuna—known as mesotherms—are at risk of overheating as sea temperatures rise.
Over the past 20 years, macroalgae blooms have increased at an unprecedented rate. This is shown by a new study, which warns that the spread could lead to major changes in the ecology of the sea.
År 2025 blev det tredje varmaste året som registrerats. Det slår EU:s klimattjänst Copernicus fast i en ny rapport. För första gången har planetens medeltemperatur legat över 1,5 graders uppvärmning under tre sammanhängande år. En av platserna där det märks som mest är Antarktis.
The Netherlands has failed to protect the inhabitants of the former colony of Bonaire from climate change, according to a ruling by the District Court in The Hague. ‘This gives island states a boost,’ says researcher Björn Ola Linnér.
The costs of climate change almost double if the impact on the oceans is also included in the calculations. ‘If we don't put a price on the damage that climate change causes to the oceans, it will remain invisible to key decision-makers,’ says environmental economist Bernardo Bastien-Olvera.
A British environmental organisation has named 2025 the ‘year of the octopus’ after a record number of octopus sightings in the coastal waters of the archipelago. A mild winter followed by an unusually warm spring is the reason. En mild vinter följd av en ovanligt varm vår är orsaken.
A new study shows that there is a link between rising temperatures and changes in polar bears' DNA. This may help the bears adapt to increasingly challenging environments.
Climate change intensified the recent catastrophic rainfall in Southeast Asia, according to a rapid assessment by the World Weather Attribution (WWA) research network.
Climate change has caused tropical storms to increase in strength. One contributing factor is rising sea temperatures, which can give storms more power and lead to worse consequences for those affected.
The new report from the United Nations Environment Programme, Emissions Gap Report, states that the world has so far failed to slow down climate change sufficiently. For the ocean, this means dying corals, migrating species and even higher temperatures. - Cod may abandon the North Sea and the Baltic Sea altogether, says Kerstin Johannesson, professor of marine ecology at the University of Gothenburg.
Catastrophic and life-threatening floods loom as Category 5 Hurricane Melissa reaches Jamaica. The storm is the strongest on the globe this year – and among the 20 strongest ever to form over the Atlantic.
They have been called a ‘secret weapon’ in the fight against climate change – eelgrass beds and kelp forests in the sea. They can be likened to trees in the sea that bind carbon dioxide 35 times faster than the Amazon rainforest. But they are under threat from human presence, environmental pollution and emissions.
Coral reefs have reached their limit. This is the conclusion of a new global report, which warns that most reefs will likely disappear unless powerful climate measures are taken. But in the midst of this crisis, there are places that show that recovery is possible—if nature is given a chance.
Arctic seals are threatened with extinction, mainly due to climate change and human activity, according to an updated list from the International Union for Conservation of Nature (IUCN).
Greenhouse gas emissions have made the oceans increasingly acidic. Now, according to a new report, ocean acidification has exceeded the limit considered safe for marine life for the first time. ‘The consequences could be really serious,’ says Albert Norström, associate professor at the Stockholm Resilience Centre.
The government wants to remove the Environmental Code's ban on nuclear power in virtually all Swedish archipelagos. This would open the way for nuclear power plants in Bohuslän, Öland, Gotland, and the Stockholm archipelago, among other places.
Antarctica has been relatively unaffected by climate change. However, according to a recent study, the situation on the continent is beginning to resemble that of Greenland.
All parts of the oceans are under triple attack, according to the EU's Copernicus Climate Service's major annual ocean report. ‘These changes affect us all – ecosystems, society and the economy,’ says oceanographer Karina von Schuckmann.
One of the world's most common organisms is threatened by rising sea temperatures. The amount of the most common type of cyanobacteria (prochlorococcus) is at risk of being halved unless climate change is slowed down.
Even the ancient Greeks held the yellow-striped mullus – or, in short, the mullus – in high regard. With rising sea temperatures, it has been appearing on the Swedish west coast in autumn for several years now. However, spawning and reproduction have never been recorded in Swedish waters. But there are many indications that the mullet can now be considered a resident and reproducing species. Many shallow bays along the west coast have been swarming with its fry this summer.
You can't see it above the surface, and that's a big problem, because what's happening below the surface is like an ongoing disaster. Until now, the ocean has been our great savior, absorbing almost all the excess energy we've released. But there's a limit to what the ocean can absorb, and it seems like we've exceeded it now.
A huge area of the ocean – four times the size of Europe – was hit last year by an unprecedented marine heatwave.
Plastic, overfishing, global warming and fighting over resources. Despite several urgent problems, oceans and marine resources are the most underfunded of the UN's sustainability goals. At the ocean conference in Nice, countries will now try to agree and find funding to protect and preserve the world's oceans.
