Earth Changes
Mercury from coal-fired power plants and other sources is absorbed through the environment, concentrating as it moves upward in the food chain. Researchers said the greatest threat to humans comes from eating the fish. In 44 states, residents face varying forms of consumption advisories.
Climate change has resulted in a dramatic decline in the numbers of sandeels - a major part of the staple diet of the porpoises.
Marine scientists have recorded a significant rise in the percentage of porpoise deaths due to malnutrition. They are also becoming increasingly concerned about the impact of the declining sandeel populations on other species such as the bottle-nosed dolphin and the minke whale, believing this could jeopardise the future of Scotland's booming whale-watching sector.
Preliminary data from the National Climatic Data Center listed the average temperature for the 48 contiguous states last year as 55 degrees Fahrenheit. That's 2.2 degrees warmer than average and 0.07 degree warmer than 1998, the previous warmest year on record.
Worldwide, the agency said, it was the sixth warmest year on record.
New Jersey, apparently.
Across the length and breadth of Manhattan, people were asking, "What's that smell?" after a pungent odor like natural gas or rotten eggs blanketed the borough and northern New Jersey for three hours yesterday morning.
By evening, the answer seemed to be a stinky gas emitted by a New Jersey swamp or marsh.
Is it an illness, toxins or a natural phenomenon? A string of autopsies in Perth have shed no light on the mystery.
All the residents of flood-devastated Esperance know is that their "dawn chorus" of singing birds is missing.
Hans Pörtner and Rainer Knust from the Alfred Wegener Institute for Polar and Marine Research in Bremerhaven, Germany, studied the viviparous eelpout (Zoarces viviparus), a fish that lives in the northern Wadden Sea. When summer water temperatures were about 20 degrees C the fish were fine, but after a hot summer of 25 degrees C, the fish population crashed to nearly zero.
In other words, like western Siberia, the 400 billion tons of methane in permafrost hydrate will gradually melt, and the released methane will speed the melting. The effect of even a couple of billion tons of methane being emitted into the atmosphere each year would be catastrophic.