Climate change - page 5

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2012 ranked as the ninth-warmest year since 1880 and continued long-term trend of rising global temperatures

According to NASA's annual analysis of surface temperatures across the globe, 2012 was the ninth warmest year since 1880 and it continued a long-term trend of rising global temperatures. With the exception of 1998, the nine warmest years in the 132-year record have

January 15, 2013

Progressing toward solar max

The effects of solar variability on Earth's climate

A new report issued by the National Research Council (NRC), "The Effects of Solar Variability on Earth's Climate," lays out some of the surprisingly complex ways that solar activity can make itself felt on our planet.The luminosity of our own sun varies a 0.1% over

January 10, 2013

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Alaska experiencing a widespread cooling pattern for at least a decade

Alaska has been experiencing a widespread cooling pattern for at least a decade. In the first decade since 2000, the state has cooled an average of -16.4°C (2.4 degrees Fahrenheit). Parts of Western Alaska saw temperatures drop a significant 4.5

January 05, 2013

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Climate change can cause volcanic eruptions

The evidence from a ten-year research project into the volcanoes of Central America indicates that climate change can also cause volcanic eruptions. Researchers have observations of ash layers in the seabed and have reconstructed the history of volcanic eruptions

December 27, 2012

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2012 Arctic Report Card - Dramatic changes in the Arctic

The Arctic Report Card is tracking recent environmental changes, with 20 essays on different aspects of the environment. The Arctic Report Cards produced by the National Oceanic and Atmospheric Administration (NOAA) are a source of reliable and brief information on the

December 07, 2012

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State of global temperatures in 2012

According to the World Meteorological Organization, the first ten months of 2012 indicate that it will most likely be the ninth warmest on record (since records began in 1850), despite the cooling influence of La Niña early in the year. The presence of a La Niña

November 29, 2012

Pine Island glacier rift

Pine Island Glacier's calving front free of sea ice

Flying over the Antarctica's Pine Island Glacier last year in October, NASA’s Operation IceBridge  scientists discovered a massive rift 29 kilometers (18 miles) long, 80 meters (260 feet) wide on average, and 50 to 60 meters (170 to 200 feet) deep. When that

November 24, 2012

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Anticlockwise rotation of sea-surface height near Norway’s west coast

An unusual anticlockwise rotation of sea-surface height patterns has been observed near Norway’s west coast.  A topographic depression about 3500 m deep in the Norwegian Sea, the Lofoten Basin  is a region of high mesoscale activity and plays an important role

November 21, 2012

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Antarctic sea ice cover is increasing under the effects of climate change

Antarctic sea ice drift caused by changing winds are responsible for observed increases in Antarctic sea ice cover in the past two decades according to new study by British Antarctic Survey and NASA. While Arctic experienced dramatic record ice loss due the climate

November 18, 2012

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Coffee Arabica could be extinct by the end of the century

Arabica coffee production is strongly (negative) influenced by accelerated climate change, and in most cases the outcome will be negative for the coffee industry.Wild Arabica coffee or Coffee Arabica could extinct due climate changes by the end of this century

November 17, 2012

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Retreat of Crane Glacier on Antarctic's Larsen-B ice shelf

Hektoria and Crane glaciers on the Antarctic Peninsula have continued thinning since the Larsen-B ice shelf’s collapse in 2002.  They are considered to be among some of the fastest changing in recent years. Almost the entire Larsen B Ice Shelf splintered and

November 04, 2012

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Global sea level drop caused by La Nina

A new study shows that the 2011 La Nina was so strong that it caused global mean sea level to drop by 5 millimeters (0.2 inches).  This occurred concurrently with the La Nina phase of the El Nino-Southern Oscillation (ENSO) which involves a shift in ocean surface

November 04, 2012

sierra nevada mountains

Climate change affecting overall weather patterns and could affect water availability in California

In a recent article published on University of California, MERCED website researchers say California won’t see a superstorm like Hurricane Sandy because the Pacific Ocean is too cold to feed that kind of weather system, but weather can have comparable extreme

November 03, 2012

Aral Sea 7

Hope for disappearing Aral Sea

The Aral Sea was once the world’s fourth largest lake or inland sea – a rich haven for fish, birds and other wildlife. The Aral Sea began to shrink in the 1960s, when massive diversion of water for cotton and rice cultivation under the Soviet Union drained the two

October 25, 2012

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Wind shift could affect sea ice loss and bring more extreme weather to North America and Europe

Arctic has been experiencing a shift in the general patterns of high and low pressures recently, as well as the direction and speed of the winds. These changes may explain some of the dramatic sea ice loss experienced in the Arctic regions. Wind speed and direction

October 24, 2012

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UK experienced its "weirdest" weather on record in the past few months, scientists say

In an article named "UK experiences 'weirdest' weather" environment analyst Roger Harrabin (BBC) states that the driest spring for over a century gave way to the wettest recorded April to June in a dramatic turnaround never documented before. The scientists said

October 20, 2012

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NSF issues grant worth $12 million for research on Ocean acidification

Ocean acidification is a major threat to our marine ecosystems. Provided carbon dioxide levels have considerably risen in the atmosphere, scientists suggest oceans are now acidifying at a rate faster than anytime during past 300 million years. In an attempt to

October 05, 2012