The Point of No Return Climate Change Nightmares Are Already Here. Historians may look to 2. Some snapshots In just the past few months, record setting heat waves in Pakistan and India each killed more than 1,0. Change The Past' title='Change The Past' />In Washington states Olympic National Park, the rainforest caught fire for the first time in living memory. London reached 9. Fahrenheit during the hottest July day ever recorded in the U. K. The Guardian briefly had to pause its live blog of the heat wave because its computer servers overheated. In California, suffering from its worst drought in a millennium, a 5. I 1. 5 freeway during rush hour traffic. Then, a few days later, the region was pounded by intense, virtually unheard of summer rains. Puerto Rico is under its strictest water rationing in history as a monster El Nio forms in the tropical Pacific Ocean, shifting weather patterns worldwide. On July 2. 0th, James Hansen, the former NASA climatologist who brought climate change to the publics attention in the summer of 1. He and a team of climate scientists had identified a newly important feedback mechanism off the coast of Antarctica that suggests mean sea levels could rise 1. This page introduces what climate change is, the potential impacts and resistance to the otherwise accepted understanding that it is manmade climate change. Change The Past' title='Change The Past' />The authors included this chilling warning If emissions arent cut, We conclude that multi meter sea level rise would become practically unavoidable. Social disruption and economic consequences of such large sea level rise could be devastating. It is not difficult to imagine that conflicts arising from forced migrations and economic collapse might make the planet ungovernable, threatening the fabric of civilization. Eric Rignot, a climate scientist at NASA and the University of California Irvine and a co author on Hansens study, said their new research doesnt necessarily change the worst case scenario on sea level rise, it just makes it much more pressing to think about and discuss, especially among world leaders. In particular, says Rignot, the new research shows a two degree Celsius rise in global temperature  the previously agreed upon safe level of climate change  would be a catastrophe for sea level rise. Hansens new study also shows how complicated and unpredictable climate change can be. Even as global ocean temperatures rise to their highest levels in recorded history, some parts of the ocean, near where ice is melting exceptionally fast, are actually cooling, slowing ocean circulation currents and sending weather patterns into a frenzy. Sure enough, a persistently cold patch of ocean is starting to show up just south of Greenland, exactly where previous experimental predictions of a sudden surge of freshwater from melting ice expected it to be. Michael Mann, another prominent climate scientist, recently said of the unexpectedly sudden Atlantic slowdown, This is yet another example of where observations suggest that climate model predictions may be too conservative when it comes to the pace at which certain aspects of climate change are proceeding. Since storm systems and jet streams in the United States and Europe partially draw their energy from the difference in ocean temperatures, the implication of one patch of ocean cooling while the rest of the ocean warms is profound. Storms will get stronger, and sea level rise will accelerate. Scientists like Hansen only expect extreme weather to get worse in the years to come, though Mann said it was still unclear whether recent severe winters on the East Coast are connected to the phenomenon. And yet, these arent even the most disturbing changes happening to the Earths biosphere that climate scientists are discovering this year. For that, you have to look not at the rising sea levels but to what is actually happening within the oceans themselves. Adobe Cs5 Design Premium German Download Music. Water temperatures this year in the North Pacific have never been this high for this long over such a large area  and it is already having a profound effect on marine life. Related Apocalypse Soon 9 Terrifying Signs of Environmental Doom. Eighty year old Roger Thomas runs whale watching trips out of San Francisco. On an excursion earlier this year, Thomas spotted 2. During a survey on July 4th, federal officials spotted 1. Search engine for material safety data sheets. Farallon Islands  enough to issue a boating warning. Humpbacks are occasionally seen offshore in California, but rarely so close to the coast or in such numbers. Why are they coming so close to shore Exceptionally warm water has concentrated the krill and anchovies they feed on into a narrow band of relatively cool coastal water. The whales are having a heyday. Descargar Facebook Gratis Para Celular Blackberry 8520 Curve there. Its unbelievable, Thomas told a local paper. Whales are all overthe place. Last fall, in northern Alaska, in the same part of the Arctic where Shell is planning to drill for oil, federal scientists discovered 3. It was the largest ever documented haul out of walruses, and a sign that sea ice, their favored habitat, is becoming harder and harder to find. Marine life is moving north, adapting in real time to the warming ocean. Great white sharks have been sighted breeding near Monterey Bay, California, the farthest north thats ever been known to occur. A blue marlin was caught last summer near Catalina Island  1,0. Across California, there have been sightings of non native animals moving north, such as Mexican red crabs. Salmon on the brink of dying out. Michael QuintonNewscom. Descargas Sims 2 Ropa Y Peinados Gratis here. No species may be as uniquely endangered as the one most associated with the Pacific Northwest, the salmon. Every two weeks, Bill Peterson, an oceanographer and senior scientist at the National Oceanic and Atmospheric Administrations Northwest Fisheries Science Center in Oregon, takes to the sea to collect data he uses to forecast the return of salmon. What hes been seeing this year is deeply troubling. Salmon are crucial to their coastal ecosystem like perhaps few other species on the planet. A significant portion of the nitrogen in West Coast forests has been traced back to salmon, which can travel hundreds of miles upstream to lay their eggs. The largest trees on Earth simply wouldnt exist without salmon. But their situation is precarious. This year, officials in California are bringing salmon downstream in convoys of trucks, because river levels are too low and the temperatures too warm for them to have a reasonable chance of surviving. One species, the winter run Chinook salmon, is at a particularly increased risk of decline in the next few years, should the warm water persist offshore. You talk to fishermen, and they all say Weve never seen anything like this before, says Peterson. So when you have no experience with something like this, it gets like, What the hells going on Atmospheric scientists increasingly believe that the exceptionally warm waters over the past months are the early indications of a phase shift in the Pacific Decadal Oscillation, a cyclical warming of the North Pacific that happens a few times each century. Positive phases of the PDO have been known to last for 1. PDO. It also makes big El Nios, like this years, more likely. The nature of PDO phase shifts is unpredictable  climate scientists simply havent yet figured out precisely whats behind them and why they happen when they do.