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Above Average Temperatures for November Keep U.S. on Track for Record Hot Year

On Monday, scientists from the National Oceanic and Atmospheric Administration (NOAA) said that for the 333rd consecutive month November 2012 brought higher than average global temperatures. In fact, the last time November temperatures dropped below the 20th century average was in 1976. Last month global average temperature over land and oceans was 56.41°F, or the 5th highest recorded average land/sea…

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Video Friday: Temperature Leads CO2? The 800-Year Lag

Potholer54 (a.k.a Peter Hadfield) tackles a common myth about climate change often called the “800-year lag.”  Antarctic ice core data shows CO2 lagging temperature during periods of deglaciation; this has been well understood for decades. Despite this, many climate change “skeptics” ignore the full picture of numerous studies over the years and assert these data of ancient deglaciation “proves” that CO2…

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Enviro News Wrap: The Bright Side of Solar; Wind Power Matures; How the Koch Brothers Influence Environmental Policy, and more…

GlobalWarmingisReal contributor Anders Hellum-Alexander wraps-up the climate and environmental news headlines for the past week: The US Endangered Species Act  (ESA) is constantly attacked by landowners, business owners and politicians. The ESA is challenged in US courts and it survives time after time. There are environmental victories to be found in modern America. MotherJones shows it’s readers the brighter side of solar after…

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50 Million Year Old Fossil Clams Shed Light on El Nino and Global Warming

One current climate theory suggests that global warming could result in El Nino conditions becoming permanent as opposed to occurring in prevailing two- to seven-year cycles. New research based on a study of a long-lived species of fossilized clam that lived of the coast of Antarctica indicates that was not the case during the early Eocene, when the Earth was as warm as it’s been in the last 65 million years.

New weather normal baseline data is adopted on July 1st

New Climate “Normals” Begin on July 1st – Warmer is the New Norm : NOAA Releases 2010 State of the Climate Report

Tomorrow the National Oceanic and Atmospheric Administration (NOAA) will incorporate new baseline data reflecting new climate “normals” for 1981-2010. For the past decade baseline normals spanned the period from 1971-2000. These normals “serve as a 30 year baseline average of important climate variables that are used to understand average climate conditions at any location and serve as a consistent point…

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Shifting currents are eating away at the Pine Island Ice Shelf

Shifting Ocean Currents Drive Accelerating Ice Melt of Antarctic Ice Shelf

Shifting ocean currents appear to be accelerating ice melt of the Pine Island Glacier Ice Shelf in western Antarctica. According to research published this week in the journal Nature Geoscience, scientists from the Lamont-Doherty Earth Observatory at Columbia University have recorded ocean currents driving at and underneath the ice shelf, carving out an expanding cavity from underneath the glacier, creating…

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Accelerating ice melt from the Greenland and Antarctic ice sheets will significantly impact sea level rise in the coming decades

Melting Ice Sheets the Largest Contributor to Sea Level Rise

A new study to be published this month in the journal Geophysical Research Letters has found that the Greenland and Antarctic ice sheets are losing mass at an accelerating rate. The rapidly accelerating ice melt from the ice sheets is happening much sooner the models have predicted. According to the research, the ice sheets are now overtaking the ice loss…

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