Archive for the month “November, 2015”

Research: Burning existing fossil fuels will melt the Antarctic ice sheet

READ ORIGINAL PAPER:
Combustion of available fossil fuel resources sufficient to eliminate the Antarctic Ice Sheet
By Ricarda Winkelmann, Anders Levermann, Andy Ridgwell and Ken Caldeira

If We Burned All the Fossil Fuel in the World
Elizabeth Kolbert, The New Yorker

What would happen if we burned through all of the fossil-fuel resources known to exist? In a paper published today in the journal Science Advances, a quartet of German, American, and British researchers take on this question. The answer, not surprisingly, is grim. If mankind managed to combust the world’s known conventional deposits of coal, gas, and oil, and then went on to consume all of its “unconventional” ones, like tar-sands oil and shale gas, the result would be emissions on the order of ten trillion tons of carbon. Average global temperatures would soar, and the world would remain steamy for millennia. After ten thousand years, the planet would still be something like fourteen degrees Fahrenheit hotter than it is today. All of the worlds mountain glaciers and the Greenland ice sheet would melt away; Antarctica, too, would eventually become pretty much ice free. Sea levels would rise by hundreds of feet. Read more…

Three minutes to midnight: Scientists reset doomsday clock

Bulletin of Atomic Scientists

Unchecked climate change, global nuclear weapons modernizations, and outsized nuclear weapons arsenals pose extraordinary and undeniable threats to the continued existence of humanity, and world leaders have failed to act with the speed or on the scale required to protect citizens from potential catastrophe. These failures of political leadership endanger every person on Earth.” Despite some modestly positive developments in the climate change arena, current efforts are entirely insufficient to prevent a catastrophic warming of Earth. Meanwhile, the United States and Russia have embarked on massive programs to modernize their nuclear triads—thereby undermining existing nuclear weapons treaties. The clock ticks now at just three minutes to midnight because international leaders are failing to perform their most important duty—ensuring and preserving the health and vitality of human civilization.

Read more…

Peak Oil (Or why city slickers should learn to get their hands dirty)


Peak Oil, Food Security and Urban Agriculture

T. Vijayendra

Abstract
Peak Oil refers to the point when oil production reaches a peak, and henceforth can only fall. This has already happened. This has enormous implications for food security. It raises cost and prices of food because farm inputs – primarily fertilisers and pesticides are petroleum based products. Also the cost of transport goes up. This has resulted in food prices going up and within the present system it will only go up further. The alternative is socialism with local food security based on organic food production. Urban agriculture, particularly for perishable foods like vegetables and fruits is becoming a must. Read more…

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