Carbon dioxide pollution levels in Earth's atmosphere hit a record high in 2012, according a UN report released Wednesday. The concentration of carbon dioxide, a primary contributor to global warming, is far beyond the level some scientists and environmental groups say is the upper limit for a safe level.
Climate Change Conference-goers in Doha learned Wednesday that 2012 will go down as one of the hottest years on record. A provisional statement by the UN warns of rising temperatures and melting ice.
Climate change studies show rising global temperatures – the 10th highest ever – and shrinking ice caps. This year saw the lowest volume of Arctic sea ice ever recorded, due to global warming, say scientists.
A report from the United Nations' weather agency, the World Meteorological Organization, found that greenhouse gases are more prevalent in our atmosphere than at any time since the Industrial Revolution.
If November and December temperatures stay relatively warm, 2010 could capture the record for warmest year, an early analysis shows. This year has also been marked by extreme weather events.
At the Copenhagen global warming talks, high-level delegations have arrived to kick negotiations into high gear. But the question of money to help poorer nations grapple with the effects of climate change remains a sticking point.
At Copenhagen climate change talks, a research group says this decade is likely to prove the hottest on record.
Too few people are changing their lifestyles, environmentalists say, and too few politicians are acting.