30% of the World's Species At RiskGlobal warming is placing a large percentage of the Earth's species in danger of extinction. The good news is that you can make a huge difference by merely adopting a healthy vegan diet.
Scientists believe that if temperatures rise by two degrees Centigrade during this century – which is very likely – climate changes will put 30% of the planet’s species in extreme danger of becoming extinct. Health, infrastructure, availability of fresh water and harvests in many regions will also be affected by the warmer climate, which will have a negative impact worldwide if that level of temperature is exceeded. The effects of these changes are already visible, and demonstrate the consequences of human activity over the last 30 years, according to experts who met in Paris.
The experts noted that measures for containing greenhouse effect emissions and for facilitating the adaptation of natural and social systems are complementary for attenuating the negative impacts of the phenomenon. A draft study on the impact of climate change might be modified between now and April, when it will be discussed in depth before being approved.
But the main lines of this summary from the Intergovernmental Panel on Climate Change (IPCC) have emerged. Higher temperatures have already had a heavy impact on the planet: plants that come into leaf early after the winter early, or keep their leaves longer; bird species that have changed their migration or nesting periods; changes in ocean communities due to higher water temperatures, or changes in salt content and currents, among others.
LESS SNOWFALL OR RAIN
At the moment, not all of the warming effects are negative, although most of them are. In northern Europe, New Zealand and southern Australia, temporarily positive changes may occur, such as less snowfall or more rain, with possible positive effects on agriculture or energy consumption.
But water scarcity, increasingly frequent and more intense droughts, smaller harvests, higher sea levels, flooding and disastrous meteorological events can affect vast amounts of territory, above all those at medium or low altitudes, where most of the human population lives.
Scientists warn that if temperatures rise by more than 2 degrees Centigrade with respect to averages in the 1990s, the impact would be negative throughout the world, and would affect almost all aspects of life. Even a slighter warming would have a high cost for most of the world, and would be more catastrophic in coastal areas and many islands.
El Nuevo Diario
Original article from: http://www.granma.cu/ingles/2007/febrero/vier2/06cambios.html Forward this news message: