Ved at udskyde globale aftaler om klimahandling med endnu 20 år går vi glip af muligheden for for altid at holde temperaturstingningerne under 2 grader, viser ny undersøgelse.
2. Januar, 2013 (LiveScience): Delaying global action on climate change by 20 more years will put the goal of keeping the world relatively cool out of reach forever, no matter how much money humanity later spends to try to solve the problem, a new study finds.
Since the 1990s, scientists and international negotiators have aimed to keep global temperatures from warming more than 2 degrees Celsius (3.6 degrees Fahrenheit), but little progress has been made so far in concrete steps toward that goal. The most recent climate talks, in Qatar in December, ended with only modest steps that fail to address growing greenhouse gas emissions, climate scientists said.
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It’s these delays that ultimately make dealing with climate change more expensive and perhaps eventually impossible, according to a study published this week (Jan. 4) in the journal Nature. While it’s true there are still uncertainties about how the climate will respond to specific strategies, these uncertainties are nothing compared with potential disaster caused by delay, said study researcher Joeri Rogelj of Switzerland’s Institute for Atmospheric and Climate Science in Zurich.
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The uncertainties about how the climate system will respond have been previously used as an argument to postpone action until we have learned more,” Rogelj told LiveScience. “We show that such a delay strategy is unsupported and that the most important factor for staying below 2 degrees C is the timing of when we start tackling this problem at a global scale.”
Læs mere her: http://www.livescience.com/25911-politics-climate-change-mitigation.html
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