Global Warming

All Global Warming

Bloomberg details NYC plan to combat climate change (+video)

New York City Mayor Michael Bloomberg laid out a multimillion dollar plan Tuesday to guard New York City against storms and the effects of global warming. Fueled by Superstorm Sandy last fall, the sweeping proposals for New York represent a sizeable step up in scale and urgency for Mayor Bloomberg.
Atmospheric carbon dioxide levels reach milestone

A monitoring station in Hawaii has measured carbon dioxide levels of 400 parts per million, a concentration not seen on Earth since the Pleistocene Era.
Earth's cooling came to sudden halt in 1900, study shows

An international study used tree rings and pollen to build the first record of global climate change, continent by continent, over 2,000 years.
Antarctic ice tells conflicting story about climate change's role in big melt

Two different areas of Antarctica tell two very different stories about how climate change might be affecting ice melt. The data appear to confirm that climate change impacts can be very local.
China temperature spikes linked to burning of fossil fuels

A new study from Chinese and Canadian researchers links the burning of fossil fuels to China's rise in its daily temperature spikes. China emits more greenhouse gas than the next two biggest carbon polluters – the US and India – combined.
Fasten seatbelts, air passengers. Climate change ahead.

Transatlantic flights will be bumpier by 2050 because of rising CO2 emissions, a new study finds. Turbulent episodes could double and the average strength of turbulence would also rise 10 to 40 percent.
Global temperature rise is fastest in at least 11,000 years, study says

The study, which also found the magnitude of the global temperature rise to be unmatched in 4,000 years, suggests that the current warming trend cannot be explained by naturally occurring temperature fluctuations.
Global warming: Yet another threat to Southwest's iconic pinyon pine?

Add to the long-studied global-warming perils of drought, insects, and wildfires, a new potential threat to the pinyon pine: dramatically lower production of seed-bearing cones.
Are human-caused and natural global warming different? Study says yes.

A study suggests that human-caused and natural global warming episodes affect rainfall rates differently. The finding could help scientists better forecast what's ahead.
Tornado threat: How are January tornadoes possible? (+video)

A tornado threat was posted Tuesday. Tornadoes are unusual in winter, but a large swath of the country was under a tornado watch, with some areas facing a tornado warning.
Andes glaciers melting at record rates

Andes glaciers, a vital source of fresh water for tens of millions of South Americans, are retreating at their fastest rates in more than 300 years, according to the most comprehensive review of Andes ice loss so far.
How hot was 2012? Hottest on record in US, by a long shot (+video)

Global warming 'has had a role' in making 2012 the hottest ever recorded in the lower 48 states, says a US climatologist. The average temperature was 54.3 degrees F., a full degree higher than the previous annual record.
West Antarctica warming much faster than expected

Average temperatures in West Antarctica rise 4.3 degrees since 1950s. The region's warming is nearly twice as much as expected and one of the most rapid on the planet.
India tests ways to help farmers cope with climate change

Concerns about how climate change may be affecting India are bringing fresh urgency – and funding – to longstanding challenges in sustainable agriculture.
Carbon tax: It's not coming soon

A US carbon tax would raise revenue for the federal government. But there are three reasons a carbon tax won't be part of any budget compromise in the next few weeks.
Are polar ice sheets shrinking? Report offers definitive answer at last.

Numerous studies in recent years have offered different – and sometimes conflicting – views about ice sheets in Greenland and Antarctica. But a new report offers unprecedented scope.
UN: 2012 was one of the hottest years ever

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.
Why greenhouse gases hit record high in 2011

Carbon dioxide, the primary greenhouse gas emitted by human activities, reached 390.9 parts per million last year, or 40 percent above the pre-industrial level, the World Meteorological Organization said. It cited fossil fuel as the primary source.
World Bank: Tackle warming or poverty remains

Climate change will hit all nations, but especially the poor ones, says new World Bank report. Warming could flood Vietnam and Bangladesh, dry out other areas, causing water scarcity.
How will New York keep out a rising sea? Dikes, huge sea wall, oyster beds?

After superstorm Sandy, New York officials look for long-term solutions against future floods from storm surges. Many options, little consensus.