U.N. Secretary-General Ban Ki-moon has urged governments to speed up slow-moving talks to forge a joint response to global warming and warned that climate change was an "existential challenge for the whole human race.
ກອງປະຊຸມການປ່ຽນແປງ ຂອງອາກາດແກ່ຍາວໄປ ກາຍກໍານົດ 1 ມື້
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Mideast Qatar Climate Talks
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Local and international activists march inside a conferences center to demand urgent action to address climate change at the U.N. climate talks in Doha, Qatar, December 7, 2012.
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The first climate change rally ever in the streets of Doha Qatar at the UN Climate Change meeting. (Richard Casson, Oxfam)
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Aspen, the most widespread tree in North America, is suffering from what scientists call sudden drought-induced death from climate change. Photo credit: Kimberly Pham