Latest Climate forcing Stories

2013-03-27 18:31:41

Peter Suciu for redOrbit.com — Your Universe Online It has long been known that light colors can reflect heat, while dark colors can absorb heat, but it is all a matter of light. This is because light is energy and darker colors have greater absorption, thus more heat. Even light-colored materials, such as cement or concrete, can absorb heat during the day and release it at night. Because buildings are used primarily during the day, it is typically required to cool them during...

Jet Stream Affected By Big City Waste Heat
2013-01-28 04:38:32

redOrbit Staff & Wire Reports - Your Universe Online Large metropolitan areas could be drastically impacting the weather where you live, even if they´re hundreds of miles away, researchers from the Scripps Institution of Oceanography (SIO); the University of California, San Diego (UCSD); Florida State University (FSU); and the National Center for Atmospheric Research (NCAR) claim in a new study. The researchers, who report their findings in the journal Nature Climate Change,...

MAGIC Launches For Yearlong Climate Study
2012-10-01 16:21:46

Climate instruments mounted aboard the Horizon Spirit container ship begin taking data A Horizon Lines container ship outfitted with meteorological and atmospheric instruments installed by U.S. Department of Energy (DOE) scientists from Argonne National Laboratory and Brookhaven National Laboratory will begin taking data today for a yearlong mission aimed at improving the representation of clouds in climate models. The study, a collaborative effort between DOE´s Atmospheric Radiation...

2012-04-13 11:32:26

Imagine a world where the rooftops and pavements of every urban area are resurfaced to increase the reflection of the Sun's light rays. Well, this is exactly what a group of Canadian researchers have done in an attempt to measure the potential effects against global warming. In a study published today, 13 April, in IOP Publishing's journal Environmental Research Letters, researchers from Concordia University created this scenario to see what effect a global increase in surface reflectance...

2012-03-08 10:42:52

On the hottest day of the New York City summer in 2011, a white roof covering was measured at 42 degrees Fahrenheit cooler than the traditional black roof it was being compared to, according to a study including NASA scientists that details the first scientific results from the city's unprecedented effort to brighten rooftops and reduce its "urban heat island" effect. The dark, sunlight-absorbing surfaces of some New York City roofs reached 170 degrees Fahrenheit on July 22, 2011, a day...

Image 1 - Human Activity, Not Solar Activity, Drives Global Warming
2012-02-01 05:11:53

A new NASA study underscores the fact that greenhouse gases generated by human activity -- not changes in solar activity -- are the primary force driving global warming. The study offers an updated calculation of the Earth's energy imbalance, the difference between the amount of solar energy absorbed by Earth's surface and the amount returned to space as heat. The researchers' calculations show that, despite unusually low solar activity between 2005 and 2010, the planet continued to absorb...

2011-12-06 23:06:19

Scientists have developed important new insight into the sensitivity of global temperature to changes in the Earth´s radiation balance over the last half million years. The sensitivity of global temperature to changes in the Earth´s radiation balance (climate sensitivity) is a key parameter for understanding past natural climate changes as well as potential future climate change. In a study in Journal of Climate, researchers from the Universities of Southampton and Bristol for...

Greenhouse Gases Reach Record Highs, WMO Reports
2011-11-22 06:15:52

Carbon dioxide, methane, and nitrous oxide levels reached record highs in 2010, surpassing what experts had previously called the worst-case scenario for these greenhouse gases, the World Meteorological Organization (WMO) announced on Monday. The WMO, which is the U.N.'s weather agency, reported that CO2 levels increased by 2.3 parts per million, to 389 ppm, from 2009 to last year, according to Reuters reporter Tom Miles. That single-year increase exceeds the average for both the 1990s...

Latest Climate forcing Reference Libraries

Urban Heat Island
2013-04-02 15:35:21

An urban heat island (UHI) is a metropolitan area that is drastically warmer than its surrounding rural areas because of human activities. The phenomenon was first looked into and described by Luke Howard during the 1810s, although he wasn’t the one to name the phenomenon. The difference in temperature is normally bigger at night as opposed to during the day, and it most obvious when winds are weak. Seasonally, UHI is seen during the summer and the winter. The key cause of the urban heat...

Incoming Solar Radiation Impacts By Various Weather Cycles
2012-07-23 11:19:47

The above image looks at the month of March for the three cycles known as Normal Phase, El-Nino, and La-Nina. The data was recorded for the city of Austin Texas. Remember this is just data for one month during these cycles. Normal: During this cycle incoming solar activity was upwards to 60% efficient for the month, producing enough solar energy that only 40% of the month would have not had strong incoming radiation. EL-Nino: This phase provided the area with an extended number of...

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Word of the Day
  • Having so marked an appearance as easily to be recognized.
This word may come from the Swedish 'kanspak,' quick at recognizing persons or things, or else from confusion with 'conspicuous.'