Warming Ocean Layers Will Undermine Polar Ice Sheets, Climate Models Show

Warming of the ocean's subsurface layers will melt underwater portions of the Greenland and Antarctic ice sheets faster than previously thought, according to new University of Arizona-led research. Such melting would increase the sea level more than already projected.


The research, based on 19 state-of-the-art climate models, proposes a new mechanism by which global warming will accelerate the melting of the great ice sheets during this century and the next.

The subsurface ocean layers surrounding the polar ice sheets will warm substantially as global warming progresses, the scientists found. In addition to being exposed to warming air, underwater portions of the polar ice sheets and glaciers will be bathed in warming seawater.

The subsurface ocean along the Greenland coast could increase as much as 3.6 °F (2 °C) by 2100.

"To my knowledge, this study is the first to quantify and compare future ocean warming around the Greenland and the Antarctic ice sheets using an ensemble of models," said lead author Jianjun Yin, a UA assistant professor of geosciences.

Most previous research has focused on how increases in atmospheric temperatures would affect the ice sheets, he said.

"Ocean warming is very important compared to atmospheric warming because water has a much larger heat capacity than air," Yin said. "If you put an ice cube in a warm room, it will melt in several hours. But if you put an ice cube in a cup of warm water, it will disappear in just minutes."
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Location:Cayman Islands

The decline of agriculture?

Climate change induced extreme weather events and shifting weather patterns are challenging farmer’s ability to feed us.


Wendy Johnston with Oakwyn Farms in Athens, West Virginia, is deeply concerned about how shifting weather patterns are impacting farmers’ ability to feed the global population.

“This year we’re off to a slow start,” Johnston, who farms 40 hectares, told Al Jazeera. “Last year in April we were able to plant, but this year we even had rain, cold and snow a few days in April. The weather has become very unpredictable, and that’s the real problem.”

Climate change is making farming more difficult for her, and she wonders how much worse things will become.

On March 31, The Food and Agriculture Organisation (FAO) warned of “potentially catastrophic” impacts on food production from slow-onset climate changes that are expected to increasingly hit the developing world. The report filed with the United Nations Framework Convention on Climate Change, warned that food production systems and the ecosystems they depend on are highly sensitive to climate variability and change. Changes in temperature, precipitation, and related outbreaks of pest and diseases could reduce production, the report said. Those particularly vulnerable are poor people in countries that rely on food imports, although climate change events are already driving up food costs around the globe, including in developed countries. April broke many weather-related monthly records in the US, including 292 tornadoes and 5,400 extreme weather events, which combined to cause 337 deaths.

The US National Climatic Data Center announced in June that April’s weather extremes were “unprecedented” and “never before” seen in a single month. The center also noted drought across the southern plains, wildfires in the southwest, and record floods along the Mississippi River. Full Article >>>

Location:Cayman Islands

CCCCC Update Takes Stock of Bonn Climate Change Conference

28 June 2011: The Caribbean Community Climate Change Centre (CCCCC) has published the 10th issue of its monthly Climate Change News Update, which compiles international and regional climate change-related news.


The issue features an article on the lack of agreement on key areas at the Bonn climate change talks, held from 6-17 June 2011 in Bonn, Germany.

The Update also highlights statements made by developing country officials and non-governmental organizations (NGOs) that developed countries have not provided the US$30 billion of climate financing they pledged at the Copenhagen Climate Change Conference in December 2009. The Update further reports on the announcements by Norway and Germany that they would provide US$50 million and €30 million, respectively, to the World Bank Carbon Fund, to help slow tropical deforestation, one of the major causes of climate change.

The issue also compiles regional news on climate change, including warnings by regional experts that Caribbean States are likely to fall into perpetual recession as a result of the impacts of climate change on their tourism and agriculture industries. Other news includes US Secretary of State Hillary Rodham Clinton’s announcement of new programmes to support Caribbean States’ priorities, and discussions between Guyanese President Bharrat Jagdeo and German leaders and senior officials, which focused on the need for sustained political action on climate change. [Publication: Climate Change News Update Issue 10]

Location:Cayman Islands

Biofuels land grab in Kenya's Tana Delta fuels talk of war

Kenya’s Tana Delta is disappearing and its inhabitants evicted to make way for foreign biofuels.


Gamba Manyatta village is empty now, weeds already roping around the few skeletal hut frames still standing. The people who were evicted took as much of their building materials as they could carry to start again and the land where their homes stood is now ploughed up.

Mohamed Abdi, 13, points out where his hut used to be. His was the last of the 427 families to leave. “They told us we would be burned out if we didn’t go,” he said. “They drove machinery round and round the village all day and all night to drive people out. No one understood why, as the village had been there for more than 25 years.”

The eviction of the villagers to make way for a sugar cane plantation is part of a wider land grab going on in Kenya’s Tana Delta that is not only pushing people off plots they have farmed for generations, stealing their water resources and raising tribal tensions that many fear will escalate into war, but also destroying a unique wetland habitat that is home to hundreds of rare and spectacular birds.

The irony is that most of the land is being taken for allegedly environmental reasons – to allow private companies to grow water-thirsty sugar cane and jatropha for the biofuels so much in demand in the west, where green legislation, designed to ease carbon dioxide emissions, is requiring they are mixed with petrol and diesel. Full Article >>>

Location: Islamabad

Why Climate Change Requires A Consciousness Change

Einstein famously said that we cannot solve problems with the same level of perception that created them.


We have to step up to a higher and more inclusive level of seeing what is going on in order to understand and solve great challenges. Certainly climate disruption represents one of the greatest tests humanity has ever faced because it is a much higher level problem than the actions which have created it: countless local actions (driving cars, running factories, etc.) have produced global consequences that respect no national boundaries and that imperil our collective future.

Here is how James Speth, former head of the Council on Environmental Quality and a top Washington policy maker, describes the up-leveling of perception required: "I used to think the top environmental problems facing the world were global warming, environmental degradation, and eco-system collapse.. but I was wrong. The real problem is not those three items, but greed, selfishness and apathy. And for that we need a spiritual and cultural transformation." The transformation that Speth speaks about is a shift to a higher level of attention and seeing the world from a more objective vantage point with a witnessing or reflective consciousness.

Simply stated, what is required is a shift from an "embedded consciousness" that is locked inside the habits of our thinking mind to a more spacious "reflective consciousness" that enables us to become a fair witness or objective observer of our lives. This does not mean we stop thinking; instead, we stand back and, without judgment, simply watch what we are thinking and how we are relating to both the world and ourselves.
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Location: Cayman Islands

Warming Oceans Cause Largest Movement of Marine Species in Two Million Years

Warming ocean waters are causing the largest movement of marine species seen on Earth in more than two million years, according to scientists.


Warming ocean waters are causing the largest movement of marine species seen on Earth in more than two million years, according to scientists. (AP Photo/Guillermo Arias, file)
In the Arctic, melting sea ice during recent summers has allowed a passage to open up from the Pacific ocean into the North Atlantic, allowing plankton, fish and even whales to into the Atlantic Ocean from the Pacific.

The discovery has sparked fears delicate marine food webs could be unbalanced and lead to some species becoming extinct as competition for food between the native species and the invaders stretches resources.

Rising ocean temperatures are also allowing species normally found in warmer sub-tropical regions to into the northeast Atlantic.

A venomous warm-water species Pelagia noctiluca has forced the closure of beaches and is now becoming increasingly common in the waters around Britain.

The highly venomous Portuguese Man-of-War, which is normally found in subtropical waters, is also regularly been found in the northern Atlantic waters. Full Article >>>

Location: Cayman Islands

NOAA report shows warmer weather in U.S.

Data from the National Oceanic and Atmospheric Administration indicates that the new 30-year normal has raised half a degree Fahrenheit. Some experts call it further proof of global warming.


That's the assessment of the nation's top weather agency, which will release data Friday showing the 30-year "normal" temperature in the United States.

"The climate of the 2000s is about 1.5 degree Fahrenheit warmer than the 1970s, so we would expect the updated 30-year normals to be warmer," said Thomas R. Karl, director of the National Oceanic and Atmospheric Administration's National Climatic Data Center.

That recent temperature trend was enough to drag the three-decade moving average, from 1981 to 2010, up by half a degree Fahrenheit from the 1971 to 2000 period, according to the report by NOAA. Full Article >>>

The 30-year baseline is used by scientists to understand climate conditions and trends, including climate change. Besides providing a perspective for daily weather records, the data are widely used by utilities to project energy use, by farmers to make decisions on crop selection and planting times, and by others whose livelihoods are dependent on weather.

Location: Cayman Islands