2010 ONE OF TWO WARMEST YEARS ON RECORD

Globally, 2010 was one of the two warmest years on record, according to the 2010 State of the Climate report, which NOAA has just released. The peer-reviewed report, issued in coordination with the American Meteorological Society, was compiled by 368 scientists from 45 countries. It provides a detailed, yearly update on global climate indicators, notable climate events and other climate information from every continent.

'We're continuing to closely track these indicators because it is quite clear that the climate of the past cannot be assumed to represent the climate of the future. These indicators are vital for understanding and making reliable projections of future climate,' said Thomas R. Karl, L.H.D, director of NOAA's National Climatic Data Center in Asheville, N.C.

Full report on ScienceDaily.

WORLD'S OCEANS IN 'SHOCKING' DECLINE

The oceans are in a worse state than previously suspected, according to an expert panel of scientists. In a new report they warn that ocean life is 'at high risk of entering a phase of extinction of marine species unprecedented in human history'.

Full story on BBC News, and also on Reuters.

More in the New Zealand Herald.

FOOD-PRODUCTION RACING TO BEAT CLIMATE-CHANGE

Across the globe, rising temperatures and more intense droughts, floods and storms are forcing a rethink in how to grow food, from breeding hardier crop varieties and changing planting times to complete genetic overhauls of plants, in a desperate bid to beat the effects of what we have done to the planet and sustain enough food-production for a growing population.

Full story on NewsDaily.

FASTEST C02 RELEASE AND HOT SUMMERS

The rate of release of carbon into the atmosphere today is nearly 10 times as fast as during the Paleocene-Eocene Thermal Maximum (PETM), 55.9 million years ago, the best analog we have for current global warming, according to an international team of geologists. Rate matters, and this current rapid change may not allow sufficient time for the biological environment to adjust. Full story at ScienceDaily. Second story on the same subject also at ScienceDaily.

The tropics and much of the Northern Hemisphere are likely to experience an irreversible rise in summer temperatures within the next 20 to 60 years if atmospheric greenhouse gas concentrations continue to increase, according to a new climate study by Stanford University scientists. The Stanford team concluded that many tropical regions in Africa, Asia and South America could see 'the permanent emergence of unprecedented summer heat' in the next two decades. Middle latitudes of Europe, China and North America--including the United States--are likely to undergo extreme summer temperature shifts within 60 years, the researchers found. Full story at ScienceDaily.

WEIRD WEATHER IS THE NEW NORMAL

The extremes of weather in the United States are signs of a new normal, says a group of scientists and government planners.

'It's a new normal and I really do think that global-weirding is the best way to describe what we're seeing,' says climate-scientist Katharine Hayhoe of Texas Tech University.

Full story at
NewsDaily.

REMOVAL OF C02 FROM AIR NOT VIABLE

Technologies for removing carbon dioxide from the atmosphere are unlikely to offer an economically feasible way to slow human-driven climate change for several decades, according to a new report. The American Physical Society has released a new assessment -- Direct Air Capture (DAC) of CO2 with Chemicals -- to better inform the scientific community on the technical aspects of removing carbon dioxide from the atmosphere.

Robert Socolow, a professor of mechanical and aerospace engineering at Princeton University, who served as a co-chair of the DAC study, said, "We humans should not kid ourselves that we can pour all the carbon dioxide we wish into the atmosphere right now and pull it out later at little cost."

Full report on ScienceDaily.

ALGAE STARING DOWN THE CO2 BARREL

New research shows that coccoliths, an important part of the marine environment, dissolve when seawater acidifies, which means that acidification of the world's oceans could have major consequences for the marine and global environments. Experiments show that coccoliths fall apart at the pH levels expected in 2100. Full story at ScienceDaily.

ARCTIC MELTING AND RAISING SEA FASTER
A much reduced covering of snow, shorter winter season and thawing tundra: the effects of climate change in the Arctic are already here, and are taking place significantly faster than previously thought--the conclusions of new research report on the Arctic, presented in Copenhagen this week. 'The changes are dramatic, not coincidental; the trends are unequivocal and deviate from the norm.' See ScienceDaily.

On top of that, a new study is projected a rise of up to 1.6 meters in global sea-levels by 2100, due to accelerating climate-change in the Arctic and the melting of Greenland's icecap.

CLIMATE-CHANGE WORSE THAN WORST PREDICTIONS

The founder of New Zealand's Climate Change Research Institute, Professor Martin Manning, who also worked on the IPCC's fifth report, says the way the climate is changing is beyond their worst-case scenarios.

Click here for the full article.

Professor Manning says we need a 75% cut in carbon emissions. The technology is there to achieve that, but not the political will.

ARCTIC SEA-ICE STILL DWINDLING

Although the final data is not in, it seems that the maximum winter extent of sea-ice in the Arctic is tied with 2006 as the lowest ever measured by satellites. That also means that the last seven years have seen the seven lowest measurements since records began in 1979. Full report on ScienceDaily.

AMAZON FORESTS NOT IN GOOD HEALTH

A new NASA-funded study has revealed widespread reductions in the greenness of the forests in the vast Amazon basin in South America caused by the record-breaking drought of 2010.

'The greenness levels of Amazonian vegetation--a measure of its health--decreased dramatically over an area more than three and one-half times the size of Texas and did not recover to normal levels, even after the drought ended in late October 2010,' said Liang Xu, the study's lead author from Boston University.

Full report on ScienceDaily.

RUSSIAN BOREAL FOREST CHANGING RAPIDLY

A rapid, large-scale change in the type of trees is accelerating in Russia's boreal forest, which spans its cold northern regions, and is the largest continuous expanse of forest in the world. The change is the result of globally and regionally warming climate. That in turn is creating an even warmer climate in the region, according to a new study reported in
ScienceDaily

CO2 RAPIDLY AFFECTS ATMOSPHERIC STRUCTURE

New research reported in ScienceDaily work shows that carbon-dioxide rapidly affects the structure of the atmosphere, causing quick changes precipitation, as well as many other aspects of Earth's climate, well before the greenhouse gas noticeably affects temperature.

‘The direct effects of carbon-dioxide on precipitation take place quickly,’ said a lead researcher. ‘If we could cut carbon-dioxide concentrations now, we would see precipitation increase within the year, but it would take many decades for the climate to cool.’

HYDROGEN FUEL-CELL VEHICLES NOW CLOSER

ScienceDaily outlines a paper published in
Science magazine that reveals a breakthrough in using ammonia borane to store hydrogen that will make it a far more attractive fuel for vehiclesby researchers at the Los Alamos National Laboratory describes a simple scheme that regenerates ammonia borane from a hydrogen-depleted 'spent fuel' form (called polyborazylene) back into a usable fuel via reactions in a single container. That 'one pot' method represents a significant step toward the practical use of hydrogen in vehicles by potentially reducing the expense and complexity of the recycling stage. Regeneration takes place in a sealed pressure-vessel in off-vehicle sites using hydrazine and liquid ammonia at 40 degrees Celsius. The researchers envision vehicles with interchangeable hydrogen storage tanks containing ammonia borane that are used then sent back to a factory for recharging.

ARCTIC OZONE-LEVEL PLUMMETS

Unusually low temperatures in the Arctic's ozone layer have initiated a massive depletion of ozone there recently, and the Arctic seems to be heading for a record loss. At the relevant altitudes about half the ozone that above the Arctic has been destroyed in recent weeks, which may also affect regions further south. Scientists expect further depletion, because the conditions that caused the unusally rapid depletion are continuing. Full report on ScienceDaily.

The predicted drop in the temperature of the stratosphere as the troposphere warms due to climate-change was obviously right on the button.

MELTING ICE-SHEETS DOMINATE RISING SEA

The Greenland and Antarctic ice sheets are losing mass at an accelerating rate, according to a new NASA-funded satellite study, the longest study of changes in polar ice sheet mass. It suggests that they are overtaking the loss from mountain glaciers and ice-caps to become the dominant contributor to global sea-level rise, much sooner than model forecasts have predicted.

In 2006, a year in which comparable results for the loss from mountain glaciers and ice caps are available from a separate study, the Greenland and Antarctic ice-sheets lost a total average of 475 gigatonnes a year, enough to raise global sea-level an average of 1.3 millimeters a year

The pace at which the polar ice sheets are losing mass was found to be accelerating rapidly. Each year over the course of the study, the two ice-sheets lost a combined average of 36.3 gigatonnes more than they had the year before. In comparison, the 2006 study of mountain glaciers and ice caps estimated their loss at 402 gigatonnes a year on average, with an acceleration rate a third that of the ice-sheets.

'That ice-sheets will dominate future sea-level rise is not surprising -- they hold a lot more ice than mountain glaciers,' said lead author Eric Rignot, of NASA's Jet Propulsion Laboratory, Pasadena, California, and the University of California, Irvine. 'What is surprising is this increased contribution by the ice-sheets is already happening. If present trends continue, sea-level is likely to be significantly higher than levels projected by the United Nations Intergovernmental Panel on Climate Change in 2007.'

The authors conclude that if the rate at which the ice-sheets are now melting continues, the world's oceans would be 15 centimetres higher by 2050. When that is added to the predicted contribution of 8cms from glacial ice caps and 9cms from thermal-expansion, the total could reach 32cms.

Full report in ScienceDaily.

EXTREME WEATHER LINKED TO CLIMATE-CHANGE

A report in ScienceDaily links the warming of the planet with the extreme winter weather that has hit the United States in the last two years.

What goes round comes round: the United States is responsible for a huge amount of the total global carbon-emissions, and more per head than any other nation.

WARMER EARTH EVEN WITH ZERO EMISSIONS

New research by the University of Washington (UW), reported on ScienceDaily, shows that the world is committed to a warmer climate because of emissions that have occurred up to now, regardless of what we do to mitigate the effects.

There would continue to be warming even if the most stringent policy proposals were adopted, because there still would be some emission of heat-trapping greenhouse gases such as carbon dioxide and methane. The new research shows that even if all emissions were stopped now, temperatures would remain higher than levels before the Industrial Revolution in the nineteenth century because the greenhouse gases already emitted will probably persist in the atmosphere for thousands of years.

In fact, temperatures may continue to escalate even if all cars, heating and cooling systems and other sources of greenhouse gases were suddenly eliminated, said Kyle Armour, a UW doctoral student in physics, because tiny atmospheric particles called aerosols, which tend to counteract the effect of greenhouse warming by reflecting sunlight back into space, would last only a matter of weeks once emissions stopped, but the greenhouse gases would continue.

'The aerosols would wash out quickly and then we would see an abrupt rise in temperatures over several decades,' he said.

RISING SEA THREATENS 180 US CITIES

Research led by scientists at the University of Arizona, reported in ScienceDaily, says rising sea-levels caused by climate-change could threaten an average of 9 percent of the land in 180 U.S. coastal cities by 2100. The Gulf and southern Atlantic coasts will be particularly hard-hit. Miami, New Orleans, Tampa, Fla., and Virginia Beach, Va. could lose more than 10 percent. The research is the first analysis of vulnerability to sea-level rise that includes every U.S. coastal city in the lower 48 with a population of 50,000 or more. The latest scientific projections indicate that by 2100 the sea level will rise about 1 metre, or more.

AMAZONIAN DROUGHTS RING ALARM BELLS

The 2010 drought in the Amazon may have been even more devastating for its rainforests than the unusual 2005 drought, which had been billed as a 1-in-100-year event, report ScienceDaily and NewsDaily.

Analyses of rainfall across 5.3 million square kilometres of Amazonia during the 2010 dry season, recently published in Science, shows that the drought was more widespread and severe than the one in 2005. The UK-Brazilian team also calculated that the carbon impact of the 2010 drought may exceed the 5 billion tonnes of CO2 released after the 2005 event, because severe droughts kill trees (to put that in perspective the United States emitted 5.4 billion tonnes of CO2 from fossil fuel use in 2009).