climate change tagged posts

Boom in unusual jellyfish spotted in UK waters

The number of jellyfish spotted in UK waters and on beaches increased by 32% in the past year, according to a survey by the Marine Conservation Society. The most commonly spotted were the huge barrel jellyfish – but rarer warm-water crystal jellyfish were also seen. Jellyfish populations vary naturally over time – but climate change warming the UK seas is creating favourable conditions.

A marine heatwave in June increased UK water temperatures by about 3-4C.

The world has warmed 1.1C compared to the pre-industrial period before humans began burning fossil fuels and a series of broken records this year is alarming scientists.

In August, oceans hit their highest global average temperature on record.

The Marine Conservation Society’s annual wildlife-sightings report is based on...

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Uniting the World to save our Planet

I am the founder and Director of Earthdive. 37 years ago I founded and organised a charity event called Sport Aid. 19.8 million people took part in 274 cities and 89 countries and delivered a ‘petition of blistered feet’ to the doorstep of the United Nations in New York. They demanded help for victims of the African Famine – and they got it! They raised US$35 million on the day and at a UN Special Session on Africa that followed, US$150m of African debt was cancelled.

It taught me that together, we can help change the world and now I need your help to unite the world again, this time to save our planet.

As a scuba diver I have witnessed the devastating effects climate change has had on our oceans...

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Surprising discovery could help reefs survive climate change

The factors affecting coral’s resilience—its ability to adapt to and survive environmental changes—seem to be more nuanced than scientists believed. In a study published Oct. 17 in the journal Global Change Biology, researchers reveal surprising findings about a species common to Caribbean waters. The discovery may help improve efforts to save corals from bleaching and other consequences of climate change.

A team led by Assistant Professor of Biological Sciences Carly Kenkel at the USC Dornsife College of Letters, Arts and Sciences studied the mountainous star coral, Orbicella faveolata, to determine whether coral populations that have survived higher temperatures can pass their heat tolerance on to their offspring.

To the scientists’ surprise, the results showed the opposite: T...

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Dolphins, seals and whales managed by the US are highly vulnerable to climate change,

According to a study published in PLOS ONE, 72% of cetacean and pinniped stocks managed under U.S. jurisdiction are highly or very highly vulnerable to climate change. The research was led by Matthew D. Lettrich at NOAA Fisheries, in Silver Spring, Maryland, USA.

Climate change could affect the distribution, behavior, and movements of marine mammals via warming ocean temperatures, rising sea levels, decreasing dissolved oxygen, declining sea ice coverage, ocean acidification, and salinity changes. Climate vulnerability assessments (CVAs) provide a framework for evaluating climate impacts over a broad range of species.

Prior to the study, no known CVAs specifically assessed U.S.-managed marine mammals...

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It’s time to put oceans to the test in the climate fight, scientists say

More than 200 scientists have signed a letter pushing for “responsible” research into ways to trap planet-heating carbon dioxide in the world’s oceans. They want to take urgent action on the climate crisis, while making sure they don’t trigger any new problems by relying on oceans to help in the fight.

Polluters have trashed the world’s atmosphere with carbon dioxide emissions from fossil fuels. That blanket of pollution is already warming the planet and causing more extreme weather disasters. One way to keep climate change from getting worse is to take some of those historic emissions out of the atmosphere.

Oceans already do that for us, absorbing and holding around 50 times more carbon than the atmosphere. What if humans could supercharge that ability?

That’s what...

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How protecting our oceans will help us fight climate change

Healthy marine ecosystems and climate stability have always been closely interlinked. One affects the other, and we are seeing this play out on a planetary scale. Climate change is partly the result of the extended mismanagement of oceans, but the inverse is true as well. If we have concrete measures in place to preserve, restore and sustainably manage ocean ecosystems, nature becomes a powerful ally that breathes life into climate mitigation, adaptation and resilience efforts.

Average ocean surface temperatures broke several records in July, with no signs of slowing down...

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Ocean heat record broken, with grim implications for the planet

The oceans have hit their hottest ever recorded temperature as they soak up warmth from climate change, with dire implications for our planet’s health. The average daily global sea surface temperature beat a 2016 record this week, according to the EU’s climate change service Copernicus. It reached 20.96C. That’s far above the average for this time of year.

Oceans are a vital climate regulator. They soak up heat, produce half Earth’s oxygen and drive weather patterns.

Warmer waters have less ability to absorb carbon dioxide, meaning more of that planet-warming gas will stay in the atmosphere. And it can also accelerate the melting of glaciers that flow into the ocean, leading to more sea level rise.

Hotter oceans and heatwaves disturb marine species like fish and whales as they mo...

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Crucial system of ocean currents is heading for collapse

sunset over the ocean surface

A vital system of ocean currents could collapse within a few decades if the world continues to pump out planet-heating pollution, scientists are warning – an event that would be catastrophic for global weather and “affect every person on the planet.” A new study published Tuesday in the journal Nature, found that the Atlantic Meridional Overturning Current – of which the Gulf Stream is a part – could collapse around the middle of the century, or even as early as 2025.

Scientists uninvolved with this study told CNN the exact tipping point for the critical system is uncertain, and that measurements of the currents have so far showed little trend or change...

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US refuses climate reparations for developing nations

The US says it will not “under any circumstances” pay reparations to developing countries hit by climate change-fuelled disasters. Climate envoy John Kerry made the remarks at a Congress hearing before flying to China to discuss the issue. Some countries want major economies – which produce the most greenhouse gases – to pay for past emissions. A fund has been established for poorer nations, but it remains unclear how much richer countries will pay. 

Mr Kerry, a former secretary of state, was asked during a hearing before a House of Representatives foreign affairs committee whether the US would pay countries that have been damaged by floods, storms and other climate-driven disasters. 

“No, under no circumstances,” he said in response to a question from Brian Mast, the committee cha...

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Sudden heat increase in seas around UK and Ireland

Some of the most intense marine heat increases on Earth have developed in seas around the UK and Ireland, the European Space Agency (Esa) says. Water temperatures are as much as 3 to 4C above the average for this time of year in some areas, according to analysis by Esa and the Met Office. The sea is particularly warm off the UK’s east coast from Durham to Aberdeen, and off north-west Ireland.

The Met Office says the reason is partly human-caused climate change.

But other, less-understood natural and man-made factors appear to be driving temperatures up further.

The Esa data shows sea water around virtually the entire coastline of the British Isles is warmer than usual.

map showing heating oceans

Scientists warn that intense heat like this can kill fish and other sea life, sometimes on a huge scale.

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