UN warns of 70 percent desertification by 2025

BUENOS AIRES (AFP) — Drought could parch close to 70 percent of the planet’s soil by 2025 unless countries implement policies to slow desertification, a senior United Nations official has warned. “If we cannot find a solution to this problem… in 2025, close to 70 percent could be affected,” Luc Gnacadja, executive secretary of the […]

Graph of the Day: Global Soil Degradation

There is a lack of reliable data on land degradation but it is likely that soil degradation has affected some 1 900 million hectares of land worldwide (UNEP/ISRIC 1991). The largest area affected, about 550 million hectares, is in Asia and the Pacific. In China alone, between 1957 and 1990, the area of arable land […]

The high stakes of melting Himalayan glaciers

By Reenita Malhotra, for CNN (CNN) — The glaciers in the Himalayas are receding quicker than those in other parts of the world and could disappear altogether by 2035 according to the 2007 Intergovernmental Panel on Climate Change (IPCC) report. The result of this deglaciation could be conflict as Himalayan glacial runoff has an essential […]

Vanishing Arctic ice shows no sign of returning

By Yereth Rosen ON BOARD COAST GUARD FLIGHT ABOVE BEAUFORT SEA, Oct 2 (Reuters) – Out in the Arctic Ocean, about 200 miles (322 km ) north of the nearest human settlement, the future of the world’s climate is written in the patterns of ice patches on the water’s surface. Old, “multiyear” ice — the […]

Drought disaster looms in East Africa

Rotting carcasses testify to the scale of the disaster looming in East Africa. By Daniel Howden, from Marsabit, Kenya On the plains of Marsabit the heat is so intense the bush seems to shiver. The leafless scrub, bleached white by the sun, looks like a forest of fake Christmas trees. Carcasses of cattle and camels […]

Graph of the Day: Ocean Acidification Models, 1765 and 2100

… Model output showing the impact of ocean acidification on the ocean’s carbonate saturation state in 1765, 2040, 2060, 2080, and 2100 (NOAA). Ocean Acidification Models 1765, 2040, 2060, 2080, and 2100 Technorati Tags: ocean acidification,shellfish decline,ecosystem disruption,carbon dioxide

Arctic Ocean acid 'will dissolve shells of sea creatures within 10 years'

The Arctic Ocean is becoming acidic so quickly that it will reach corrosive levels within 10 years, a leading scientist has warned.  By Matthew MoorePublished: 4:33PM BST 04 Oct 2009 Waters around the North Pole are absorbing carbon dioxide at such a rate that they will soon start dissolving the shells of living sea creatures. […]

Trampling blamed for Alaska walrus deaths

  By Dan Joling, Associated Press ANCHORAGE, Alaska — Trampling likely killed 131 mostly young walruses on the northwest shore of Alaska, according to an examination by an investigative team that included federal scientists. Young animals can be crushed in stampedes when a herd is startled by a polar bear, human hunters or even a […]

Loss of top predators causing surge in smaller predators, ecosystem collapse

The catastrophic decline around the world of ‘apex’ predators such as wolves, cougars, lions or sharks has led to a huge increase in smaller ‘mesopredators’ that are causing major economic and ecological disruptions, a new study concludes. The findings, published today in the journal Bioscience, found that in North America all of the largest terrestrial […]

Climate change threatens agriculture in Brazil

A freak tornado and floods last month may be a harbinger of a troubled future for Brazilian farmers, who worry that climate change could severely disrupt production in one of the world’s breadbaskets. Rising temperatures, a shift in seasons, and extreme weather in coming decades are likely to cut output in some areas and wipe […]

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