tagged w/ the scientists were right
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Rich nations need to cut per-capita greenhouse gas emissions to India's current levels by mid-century to avoid devastating climate change, Britain's former chief scientific adviser said on Wednesday.
Global carbon dioxide (CO2) levels from burning fossil fuels were already rising quickly and rich nations needed to quickly figure out how to maintain economic growth while committing to deep cuts in emissions, said David King.
"If you (don't want) run-away climate change, you need to be at about 350 parts per million (ppm) of CO2 ... We're currently at 387 ppm CO2, going up at 2 per annum," said King, director at Oxford University's Smith School of Enterprise and Environment.
Carbon dioxide (CO2) is the most common greenhouse gas, and atmospheric levels are sometimes measured as CO2 in parts per million. Collectively, all greenhouse gases can also be expressed as CO2 equivalent (CO2e).
King said that maintaining atmospheric CO2 levels at 450 ppm risked a 20 percent chance of global temperatures rising nearly 4 degrees Celsius.
"If you include all greenhouse gases, we're at around 420 ppm CO2e," he said, speaking at a climate change workshop hosted by Thomson Reuters in London.
He said Europe needed to reduce its annual per-capita emissions by 80 percent, or from 11 tonnes of CO2e, to India's current level of 2.2 tonnes per person by 2050.
The United States, emitting an average of 27 tonnes of CO2e per person every year, also needs to fall to these levels if the world is to avoid a dramatic rise in temperatures, he said.
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And I agree, except I think those percentages should be by at the least 2030. I don't think we have until 2050. Certainly not in the Arctic.
Rich nations need to cut per-capita greenhouse gas emissions to India's current... more
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A vast ice shelf hanging on by a thin strip looks to be the next chunk to break off from the Antarctic Peninsula, the latest sign of global warming’s impact on Earth's southernmost continent.
Scientists are shocked by the rapid change of events.
Glaciologist Ted Scambos of the University of Colorado was monitoring satellite images of the Wilkins Ice Shelf and spotted a huge iceberg measuring 25 miles by 1.5 miles (41 kilometers by 2.5 kilometers — about 10 times the area of Manhattan) that appeared to have broken away from the shelf.
Scambos alerted colleagues at the British Antarctic Survey (BAS) that it looked like the entire ice shelf — about 6,180 square miles (16,000 square kilometers — about the size of Northern Ireland)— was at risk of collapsing.
David Vaughan of the BAS had predicted in 1993 that the northern part of the Wilkins Ice Shelf was likely to be lost within 30 years if warming on the Peninsula continued at the same rate.
"Wilkins is the largest ice shelf on the Antarctic Peninsula yet to be threatened," he said. "I didn't expect to see things happen this quickly. The ice shelf is hanging by a thread — we'll know in the next few days and weeks what its fate will be."
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Hmmmm... Maybe we can get more people to take this seriously if we turn it into an environmental reality show... you know, let people actually tune in and watch how we are destroying our own planet.A vast ice shelf hanging on by a thin strip looks to be the next chunk to break off... more
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