Climate Change Impacts Inventory

Spring did not come for the oaks of Martha's Vineyard. For three years, the residents here watched a stunning outbreak of caterpillars that stripped an oak tree bare in a week, then wafted on gossamer threads to another.  In the denuded branches, scientists see a fingerprint of climate change - and a pattern of things to come. The islanders fought through clouds of drifting filaments with brooms, brushed off the showers of excrement after they walked under trees, and tiptoed through a maze of half-inch worms on the sidewalks. The local newspapers ran pictures of building sides covered with caterpillars, looking like horror-movie outtakes. 

Spring did not come for the oaks of Martha's Vineyard. For three years, the residents here watched a stunning outbreak of caterpillars that stripped an oak tree bare in a week, then wafted on gossamer threads to another. 

In the denuded branches, scientists see a fingerprint of climate change - and a pattern of things to come.

The wind in northern Arizona is older than Meteor Crater, but the blinding dust storms that have crippled nearby Interstate 40 are new.

Until last year, Highway Patrol officials had never closed I-40, but they have shut down the east-west artery 10 times this spring, including twice on May 22-23.

The full picture of what's causing the dust storms remains a mystery. There have been more frequent days of winds upward of 45 mph, but state and weather officials say that doesn't explain why it is kicking up so much grit.

HEAVY RAIN and deadly landslides have left 132 people dead and scores missing in southern China, authorities said yesterday, and over a million residents have been evacuated to safety. More storms are forecast and the death toll is expected to rise.More than 10 million people in south China’s nine provinces have been affected by severe floods, the ministry of water resources said, with power cuts, collapsed reservoirs and damage to roads also taking their toll.

Flooding is an annual event in China along the banks of the Yangtze river, which divides north and south China, and the Pearl river delta, which forms the focus of China’s economic powerhouse in Guangdong province. But this year’s floods have been heavier than usual and follow an intense period of drought in the region in the south and eastern seaboard, which left millions without drinking water and destroyed more than 12 million acres of crops.

The intense rainstorms started in mid-June in the provinces, which include Fujian, Jiangxi and Hunan, and the state-run CCTV station broadcast footage of rescues by boat and helicopter as the People’s Liberation Army rescue teams arrived at the site.

Based on satellite measurements taken during a baseline period from 1980-2000, the ice covering the Arctic Ocean ranges from an average late winter peak of about 6 million square miles (more than twice the area of the lower 48 states), to a typical late summer minimum of well less than half of that. The melt is in full swing by the summer solstice each year, when the baseline ice extent averages about 4.6 million square miles. But this year, according to NASA and the National Snow and Ice Data Center , the melt-back reached that level by June 1, three weeks early, and since that time, has been at record low levels for the period. This is particularly remarkable because throughout April, daily ice extents hovered very close to average baseline levels (as noted at the time by some commentators eager to suggest the globe is not warming). In other words, the ice retreated with exceptional speed this May — a speed close to the average melt rate of July.

Turbulent weather blows into the Southwest

According to many scientists, our atmospheric system is in such a “hydrologic cycle” with water, vapor and energy responding to the increase in heat from the Earth just like a pot of water on the stove. And this boiling point has made for increasingly windy years around the Four Corners

“Climate models indicate that global warming could be responsible for our colder temperatures and blustery days,” said Chris Fox, former Environmental Sciences professor at the University of Maryland. Fox has been studying weather for more than 20 years and spent last summer in the Durango area. Fox predicted five years ago that the “next big factor we’d be dealing with would be the wind after observing changes and “connecting the dots.”

Polar bears threatening geese as diet ravaged by climate shift Premium Article ! Your account has been frozen. For your available options click the below button. Options Premium Article ! To read this article in full you must have registered and have a Premium Content Subscription with the The Scotsman site. Subscribe Registered Article ! To read this article in full you must be registered with the site. Sign In Register « Previous « Previous Next » Next » View Gallery Published Date: 18 June 2010 By Emily Beament A CONSERVATION success which has seen barnacle geese numbers bounce back from the brink could be under threat from hungry polar bears struggling to cope with cl

A CONSERVATION success which has seen barnacle geese numbers bounce back from the brink could be under threat from hungry polar bears struggling to cope with climate change, experts said yesterday. The number of Svalbard barnacle goslings that overwintered in the Solway Firth this year was just half that expected, according to the Wildfowl and Wetlands Trust (WWT).

on eggs in the nests

POQUOSON -- Hurricane Isabel flooded Sandy Firman's house in 2003, and now routine storms drive water into the roads and marshes close by. Several homes in this low-lying city, including Firman's, have been elevated about 10 feet to keep them above the ever-closer waters. "We used to not have it like that," said Firman, who has lived in Poquoson all of his 46 years. "But something has changed around here." One big thing that has changed is the sea level, which is rising -- an increase blamed on global warming.

In southeastern Virginia, the rising sea is a problem now, and scientists expect it to get much, much worse.

The sea level in this region has been rising about a foot a century -- the highest rate on the East Coast. Scientists project a potentially devastating rise of 2 to 7 feet by 2100.

The first heavy downpour of the morning had carried debris and vegetation into the 2.7m by 2.7m culvert, starting a chain of events that led eventually to the flash flood.It was choked where it drained into the side of Delfi Orchard, so water was directed only into the side along Forum the Shopping Mall.When a second intense rainstorm the same morning added more water to the drains within a short period of time, the canal overflowed and water gushed up to the surface of Orchard Road, causing the worst floods there in 26 years.

Although national water agency PUB alerted the traffic police when the sensors at the start of each Stamford Canal channel indicated water levels were at 75 per cent, the water level rose too abruptly to get the alert out to shopkeepers.At a press conference yesterday, the PUB said the heavy rains were responsible for sweeping the debris into the drain.

What was unusual about Wednesday's storm was its intensity and its two peaks, he said. The first peak could have brought a certain amount of debris, and there was no way for PUB officers to safely check and clean it out. The next peak soon after might have brought even more debris.

Global climate change is fundamentally disrupting marine ecosystems, especially in the polar oceans, according to two new reviews of scientific research released Thursday in the journal Science.

Changes in temperature, ocean acidity and volume are affecting species from phytoplankton — the microscopic marine plants at base of the food chain — to polar bears, which may lose 68 percent of their summer habitat by 2100. "Climate change is affecting an enormously wide range of physical and biological aspects of the ocean," said John Bruno, a University of North Carolina marine ecologist and co-author of one of the reviews. "Once you start tweaking temperature, everything changes." Photosynthesis by phytoplankton is down six percent since the 1980s, and the organisms themselves are getting smaller thanks to warmer temperatures, the review noted.

Less plankton means less food for fish, which in turn means less seafood for human consumption. Phytoplankton also absorb carbon dioxide from the air and sequester it at the seafloor when they die and sink to the bottom of the ocean. Fewer phytoplankton could mean more human carbon dioxide emissions stay in the atmosphere, Bruno said, further exacerbating the climate change problem.

Climate Change Is Beginning to Disrupt Agriculture

Climate variability has already affected rains, droughts and temperatures in several parts of the United States, said Cynthia Rosenzweig, a senior research scientist with NASA's Goddard Institute for Space Studies. "We are already seeing climate change." "We are seeing the expansion of drying," said Rosenzweig, as she brought up a slide showing precipitation measurements across the United States. The measurements, comparing values from 1958 through 2008, showed significant reductions in rainfall across large portions of the Northwest and Southeast. Idaho, Washington, Montana, Georgia and Florida had some of the most drastic changes in rainfall on the map. However, the opposite is not good either, she said, adding that increased soil moisture in some areas could potentially harbor insects and other pests. And, in general, "crops do not like to have their feet wet." Aside from concerns about rainfall, local temperature is also extremely important for crop performance. The reproductive development in many important grains is a process sensitive to temperature, said Paul Gepts, a professor of agronomy at the University of California, Davis. Some plants need cold winters One of the potential side effects of climate change is a trend toward milder winters in some regions. Vital plants, Gepts said, require a cold winter in order to properly develop their seeds for the next season. Rosenzweig agreed. Heat waves, at odd times of the year, affect the proper development of proteins within corn kernels, she said. "It is like scrambling eggs." Gepts also presented a number of well-known strategies for mitigating some of the possible economic effects of climate change on agriculture. Aside from breeding plants to be more drought-, heat- and pest-resistant, he also suggested varying the types of crops maintained on a particular site on the basis of environmental suitability.

Last winter's big snowfall and cold temperatures in the eastern United States and Europe were likely caused by the loss of Arctic sea ice, researchers concluded at the International Polar Year Oslo Science Conference in Norway last week.Climate change has warmed the entire Arctic region, melting 2.5 million square kilometres of sea ice, and that, paradoxically, is producing colder and snowier winters for Europe, Asia and parts of North America. "The exceptional cold and snowy winter of 2009-2010 in Europe, eastern Asia and eastern North America is connected to unique physical processes in the Arctic," said James Overland of the NOAA/Pacific Marine Environmental Laboratory in the United States. "In future, cold and snowy winters will be the rule rather than the exception" in these regions, Overland told IPS.

Temperatures in January were -2C over the water, while the land was -25C, making conditions far windier and producing more snowfall than normal. Heavy snow on the remaining ice insulates it from the cold air, preventing it from thickening during the long winter.

This huge mass of warmer air over the Arctic in the late fall not only generates more wind and snow locally, several studies have now documented the impacts on global weather patterns. The winter of 2005-6 was the coldest in 50 years in Japan and eastern Eurasia, reported Meiji Honda, a senior scientist with the Climate Diagnosis Group at Japan's Agency for Marine-Earth Science and Technology. Honda's studies show that the air over the Arctic was quite warm in the fall of 2005, which altered normal wind patterns, pushing the jet stream further south and bringing arctic cold to much of Eurasia and Japan. He also documented the same mechanism for the colder winters of 2007-8 and 2009-10, he told participants. In eastern North America, the same conditions of 2007-8 produced increased precipitation and colder temperatures in the winter. As the sea ice declines, big impacts are likely to be seen in this region, said Sara Strey of the University of Illinois.

Swdwmsri Narzary, 19, a nimble weaver, rests her fingers on her loom and gets a faraway look when asked to recall her last few years of struggle dealing with the pressures of climate change. Orphaned at an early age, Swdwmsri lived with her elder brother and his family in Bijni, a rural village in Assam province's Chirang district. But increasingly unpredictable weather conditions - drought one year, incessant and untimely rains the next - made life gradually harder as the family's crops repeatedly failed. With the family on the verge of starvation, Swdwmsri had to drop out of school. Her brother decided not to waste money sowing new crops and instead used his remaining cash to migrate to a nearby city, Guwahati, in search of a job.

Some experts call the genocide in Darfur the world's first conflict caused by climate change. After all, the crisis was sparked, at least in part, by a decline in rainfall over the past 30 years just as the region's population doubled, pitting wandering pastoralists against settled farmers for newly scarce resources, such as arable land.

Agricultural economist Marshall Burke of the University of California, Berkeley and his colleagues have analyzed the history of conflict in sub-Saharan Africa between 1980 and 2002 in a new paper in Proceedings of the National Academy of Sciences.

"We find that civil wars were much more likely to happen in warmer-than-average years, with one degree Celsius warmer temperatures in a given year associated with a 50 percent higher likelihood of conflict in that year," Burke says. The implication: because average temperatures may warm by at least one degree C by 2030, "climate change could increase the incidences of African civil war by 55 percent by 2030, and this could result in about 390,000 additional battle deaths if future wars are as deadly as recent wars."

Oklahoma City's rainiest day in history brought rampaging floods to the city and surrounding areas yesterday, as widespread rain amounts of 8 - 11 inches deluged the city. Fortunately, no confirmed deaths or injuries have been blamed on the mayhem, though damage is extensive. Oklahoma City's Will Rogers Airport received 7.62" of rain yesterday, smashing the record for the rainiest day in city history. According to the National Climatic Data Center, the city's previous rainiest day occurred September 22, 1970, when 7.53 inches fell. Some rivers continue to rise due to all the rain, and the Canadian River east of downtown Oklahoma City is four feet over flood stage, with major flooding expected today.

The wandering grey whale that bewildered scientists after appearing off the coast of Israel last month is now paying a visit to northeastern Spain.The sighting near Barcelona Harbour means the whale, believed to be one that would normally swim past Vancouver Island, travelled about 3,000 kilometres since it was last spotted 23 days earlier.

Although scientists have not been able to positively identify where the 12-metre whale came from, the most likely scenario is that it's part of the population that would normally swim past Vancouver Island, migrating from birthing lagoons in Mexico to the Bering Sea, and that it swam through the Northwest Passage in an increasingly ice-free Arctic.

There is speculation the whale was following food -- some observers say there are signs populations are dropping, possibly because warming waters mean less food. The tiny marine life they thrive on needs cooler temperatures to survive.

The combined global land and ocean average surface temperature for May 2010 was 0.69°C (1.24°F) above the 20th century average of 14.8°C (58.6°F). This is the warmest such value on record since 1880. For March–May 2010, the combined global land and ocean surface temperature was 14.4°C (58.0°F) — the warmest March-May on record. This value is 0.73°C (1.31°F) above the 20th century average. The combined global land and ocean average surface temperature for January–May 2010 was the warmest on record.

CoreLogic® Finds More Than $234 Billion in Residential Storm Surge Exposure in 13 U.S. Cities