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Temperatures Of The Ocean Rising Faster Than Previously Believed: Scientists

Climate changing emissions continue to rise, and I don’t think enough is being done to tackle the rising temperatures

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Ocean, temperature
A woman photographs the sunrise at Ocean Park, in Old Orchard Beach, Maine, July 12, 2018. VOA

The world’s oceans are rising in temperature faster than previously believed as they absorb most of the world’s growing climate-changing emissions, scientists said Thursday.

Ocean heat – recorded by thousands of floating robots – has been setting records repeatedly over the last decade, with 2018 expected to be the hottest year yet, displacing the 2017 record, according to an analysis by the Chinese Academy of Sciences.

That is driving sea level rise, as oceans warm and expand, and helping fuel more intense hurricanes and other extreme weather, scientists warn.

The warming, measured since 1960, is faster than predicted by scientists in a 2013 Intergovernmental Panel on Climate Change report that looked at ocean warming, according to the study, published this week in the journal Science.

 

Trash, Ocean, temperature
A ship tows The Ocean Cleanup’s first buoyant trash-collecting device toward the Golden Gate Bridge in San Francisco en route to the Pacific Ocean, Sept. 8, 2018. VOA

 

“It’s mainly driven by the accumulation of greenhouse gases such as carbon dioxide in the atmosphere due to human activities,” said Lijing Cheng, a lead author of the study from the Chinese Academy of Sciences.

The increasing rate of ocean warming “is simply a signature of increasing greenhouse gases in the atmosphere,” Cheng said.

Leading climate scientists said in October that the world has about 12 years left to shift the world away from still rising emission toward cleaner renewable energy systems, or risk facing some of the worst impacts of climate change.

Those include worsening water and food shortages, stronger storms, heatwaves and other extreme weather, and rising seas.

For the last 13 years, an ocean observing system called Argo has been used to monitor changes in ocean temperatures, Cheng said, leading to more reliable data that is the basis for the new ocean heat records.

Ocean, Temperature
This photo provided by NOAA Corps shows the deployment of an Argo float to capture ocean temperature data.VOA

The system uses almost 4,000 drifting ocean robots that dive to a depth of 2,000 meters every few days, recording temperature and other indicators as they float back to the surface.

Through the data collected, scientists have documented increases in rainfall intensity and more powerful storms such as hurricanes Harvey in 2017 and Florence in 2018.

Cheng explained that oceans are the energy source for storms, and can fuel more powerful ones as temperatures – a measure of energy – rise.

Storms over the 2050-2100 period are expected, statistically, to be more powerful than storms from the 1950-2000 period, the scientist said.

Cheng said that the oceans, which have so far absorbed over 90 percent of the additional sun’s energy trapped by rising emissions, will see continuing temperature hikes in the future.

Oceans, Temperature
People walk on the beach of Biarritz, southwestern France, along the Atlantic Ocean, Dec. 18, 2015. New research shows the oceans are storing much more heat than previously thought. VOA

Because the ocean has large heat capacity it is characterized as a ˜delayed response” to global warming, which means that the ocean warming could be more serious in the future,” the researcher said.

“For example, even if we meet the target of Paris Agreement (to limit climate change), ocean will continue warming and sea level will continue rise. Their impacts will continue.” If the targets of the Paris deal to hold warming to “well below” 2 degrees Celsius, or preferably 1.5C can be met, however, expected damage by 2100 could be halved, Cheng said.

Also Read: Trash-Collecting Device Breaks Apart In The Pacific Ocean

For now, however, climate changing emissions continue to rise, and I don’t think enough is being done to tackle the rising temperatures,” Cheng said. (VOA)

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Conflict and Climate Change Largely Responsible for Rising Global Hunger, Finds Study

Climate change it says is worsening the ability of people to get enough to eat

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global hunger
Somalis fleeing hunger in their drought-stricken nation walk along the main road leading from the Somalian border to the refugee camps around Dadaab, Kenya. VOA

A new report by SIPRI, the Stockholm International Peace Research Institute, finds conflict and climate change are largely responsible for rising global hunger.

More than 800 million people around the world are going hungry. SIPRI reports 60% are in conflict-affected countries. It says political instability and conflict-related displacement generate food crises.

The Stockholm research institute says food is often inaccessible to people caught in conflict. It says limited supplies of these commodities cause prices to spiral, making food largely unaffordable.

hunger, climate change
The report finds nearly 11 million people, or more than 43 percent of the population, are undernourished and in a perpetual state of hunger. Pixabay

Climate change it says is worsening the ability of people to get enough to eat. It says hunger is growing as crops and livelihoods in impoverished countries are wiped out by extreme flooding and drought.

The U.N.’s World Food Program reports Yemen suffered the worst food crisis last year, followed in order of severity by DR Congo, Afghanistan, Ethiopia, Syria, Sudan, South Sudan and northern Nigeria. WFP spokesman, Herve Verhoosel says these eight countries account for two-thirds of all people facing acute hunger.

“Even in conflict-affected areas with limited access such as South Sudan and Yemen, when we can do our job safely and have consistent access to people in need, we can prevent the worst forms of hunger,” he said. “We only see famine now when our staff are not able to reach the food-insecure people due to insecurity or where our access is blocked.”

climate change, hunger
Climate change it says is worsening the ability of people to get enough to eat. Pixabay

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Verhoosel says more than 113 million people in 53 countries suffer from acute hunger and are in urgent need of food, nutrition and livelihood assistance. He notes conflict and insecurity are the main drivers of hunger in 21 of these countries.

WFP is the largest humanitarian agency fighting hunger. Each year it provides food assistance to nearly 90 million people in areas affected by conflict and natural disasters. (VOA)