Climate risk profile: Ethiopia
This profile provides an overview of climate risks facing Ethiopia, including how climate change will potentially impact agriculture and crop production, livestock, water resources and human health. The
This profile provides an overview of climate risks facing Ethiopia, including how climate change will potentially impact agriculture and crop production, livestock, water resources and human health. The
Much of the scientific and public focus on anthropogenic carbon dioxide emissions have been on climate impacts. Emission targets have been suggested based primarily on arguments for preventing climate from shifting significantly from its preindustrial state. However, recent studies underline a second major impact of carbon emissions: ocean acidification. Over the past 200 years, the oceans have take up `40% of the anthropogenic CO2 emissions. This uptake shows the rise in atmospheric CO2 considerably, thus alleviating climate change caused by anthropogenic greenhouse gas emissions.
Here the authors show the effects of acidification on benthic ecosystems at shallow coastal sites where volcanic CO2 vents lower the pH of the water column. Along gradients of normal pH (8.1
Rising levels of atmospheric carbon dioxide lead to acidification of the oceans. A site in the Mediterranean, naturally carbonated by under-sea volcanoes, provides clues to the possible effects on marine ecosystems.
Hundreds of trees are protected as living natural monuments and are associated with wisdom and immortality in India. In Uttarakhand, some trees hold special cultural and religious significance like peepal, banyan, mango etc. It was at the International Forestry Conference at Rome in 1926 that Protection of Natural Features were discussed. In 1929 Sir H.G. Champion, Silviculturist, Forest Research Institute mooted the idea of preservation of elite trees along with establishment of Preservation Plots and resolution No. 22 was passed.
The accelerating pace of climate warming in the earth
South Asia, consisting of India, Pakistan, Bangladesh, Nepal, Bhutan, Sri Lanka, Maldives and Afghanistan, is among the most vulnerable and highly sensitive regions to the impact and consequences of climate change. It is known to be the most disaster prone region in the world supporting a huge population of more than 1.3 billion.
Climate change, interacting with changes in land use and demographics, will affect important human dimensions in the United States, especially those related to human health, settlements and welfare.
In 2005, months of unprecedented higher-than-normal water temperatures started a cascade of bleaching, disease, and death among corals in the Eastern Caribbean. Such events are increasing in frequency around the world and threaten these fragile ecosystems, which shelter a wealth of biodiversity and provide sources of food and pharmaceuticals. Researchers must determine how rising temperatures produce coral bleaching, the pathogens that cause disease in corals, and the environmental factors that foster disease outbreaks.
Human-induced climate change is a major and growing concern to U.S. policymakers and citizens who need the best available science to inform their decisions. This report responds to that need by synthesizing the large and growing body of science that deals with how climate is changing, and the impacts of these changes on the United States, now and in the future.
Washington: There could be a brief time this summer when there is no ice on the North Pole, said a U.S. scientist, blaming global warming that has melted the Arctic ice sheet over decades. "We could have no ice at the North Pole at the end of this summer,' Mark Serreze, a scientist with the National Snow and Ice Data Center in Boulder, Colorado, told AFP. "And the reason here is that the North Pole area right now is covered with very thin ice and this ice we call first year ice, the ice that tends to melt out in the summer.'