NEWS BY ScienceDaily (Nov. 23, 2010)

Global warming News

Cloud Study Predicts More Global Warming

ScienceDaily (Nov. 23, 2010) — Current state-of-the-art global climate models predict substantial warming in response to increases in greenhouse gases such as carbon dioxide. The models, though, disagree widely in the magnitude of the warming we can expect. The disagreement among models is mainly due to the different representation of clouds. Some models predict that global mean cloud cover will increase in a warmer climate and the increased reflection of solar radiation will limit the predicted global warming. Other models predict reduced cloudiness and magnified warming.

In a paper that has just appeared in the Journal of Climate, researchers from the University of Hawaii Manoa (UHM) have assessed the performance of current global models in simulating clouds and have presented a new approach to determining the expected cloud feedbacks in a warmer climate.



Lead author Axel Lauer at the International Pacific Research Center (IPRC) at UHM notes, "All the global climate models we analyzed have serious deficiencies in simulating the properties of clouds in present-day climate. It is unfortunate that the global models' greatest weakness may be in the one aspect that is most critical for predicting the magnitude of global warming."



To study the clouds, the researchers applied a model representing only a limited region of the atmosphere over the eastern Pacific Ocean and adjacent land areas. The clouds in this region are known to greatly influence present climate, yet current global models do poorly in representing them. The regional model, developed at the IPRC, successfully simulates key features of the region's present-day cloud fields, including the observed response of clouds to El Nino. Having evaluated the model's simulation of present-day conditions, the researchers examined the response of simulated clouds in a warmer climate such as it might be in 100 years from now. The tendency for clouds to thin and cloud cover to reduce was more pronounced in this model than in any of the current global models.

Co-author Kevin Hamilton concludes, "If our model results prove to be representative of the real global climate, then climate is actually more sensitive to perturbations by greenhouse gases than current global models predict, and even the highest warming predictions would underestimate the real change we could see."



This research was supported by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC), by NASA through Grant NNX07AG53G, and by NOAA through Grant NA09OAR4320075, which sponsor research at the International Pacific Research Center. This research was also supported by NOAA/CPPA Grant NA07OAR4310257 and DOE Regional and Global Climate Modeling (RCGM) Program Grant ER64840

FOR MORE DETAILS : http://www.sciencedaily.com/releases/2010/11/101122172010.htm

Global Warming Facts

Global warming is caused by green house gases, which trap in the sun’s infrared rays in the earth’s atmosphere, which in turn heat up the earth’s atmosphere. These green house effect warming is called as global warming. The effects of green house effect are visible more prominently in the recent years, with number of natural calamities on the rise in the whole world.

The global warming has happened in the past few years and is evident from the rise in mean temperature of the earth’s atmosphere. The main causes for the global warming are attributed to release of green house gases by human activities. The main gases contributing to green house effect are carbon dioxide, water vapor, methane and nitrous oxide. The largest producers of these gases are the thermal power plants, which burn the fossil fuels and produce these gases in large quantities. The second biggest sources of these green house gases are the road vehicles and industries.
The global warming has led to increase in mean earth surface temperature and thus melting of polar ice. There are frequent melt down of glaciers that result in floods and other natural calamities. The melting of ice at the poles had led the mean sea level. And further increase in temperature may further melt the ice and lead to further increase in mean sea level, which will engulf low lying countries.


The effect of global warming is very evident on the animal kingdom also. Some animals have become extinct due to loss of their natural habitat or their inability to evolve to the rapid changes in the climate. Also there is a change in their life style because of the changes in the seasons. The migrating birds have changed their time of travel and also their place of migration.

The effect of global warming can be felt on seasons too. There is shift in season cycle, as the summers are getting longer than the winters. This has affected the animals and made them to change their lifestyle accordingly, and those who failed to do so have perished or on the verge of extinction.

The global warming is also responsible for the introduction of some new diseases. The bacteria are more effective and multiply much faster in warmer temperatures compared to cold temperatures. The increase in temperature has led to increase in the microbes that cause diseases.

Global warming is also effecting the crop production, as the crops are getting destroyed by the sudden change in temperatures or sudden on set of rains. Also the flash floods and other natural calamities affect the crop.

As a matter of fact, because of global warming, the earth’s atmosphere is getting more unpredictable with heavy rains in the areas, which have scanty rainfall or drought in the areas, which received good annual rainfall. The months of rainfall has also getting affected.

But there are some people on the other side of the wall also, they believe that the global warming is a natural process and cannot disturb our ecosystem. The earth’s surface mean temperature was even higher a long time ago, and the ecosystem has evolved from that temperature to this. So it can evolve further. But the changes that are happening now are rather fast compared to earlier times.
For more information visit -www.globalwarming.org.in

Effects of global warming on agriculture

Effects of Global warming

One of the major causes of global warming is an increase in CO2. Some scientists think this will help plants.

One of the things that will help plants is the weather will be warmer, making a longer growing season. If the plants have a longer growing season they will produce more fruit. Another thing is that more precipitation is anticipated. The United States Environmental Protection Agency ( U.S.E.P.A ) predicts a 7% increase in precipitation by the year 2060 and a 5 degree increase in the temperature. If there is an increase in precipitation, the plants will have plenty of water. Plus, plants breathe CO2 like we breathe oxygen. If there is warmer weather, an increase in precipitation, and lots of CO2, the plants will grow better instead of dying during global warming, right?

Some scientists don't think it will help plants. If the temperature increases, and the precipitation increases then the rain will evaporate faster because of the heat. We would need an increase of more than 7% just to have the same amount of water available for use as we do today. There will also be a dramatic change in weather compared to the weather of today. There will be periods of drought followed by periods of dramatic storms. A drought might occur when the plants have just sprouted up from the ground. They won't be able to survive the drought. The same thing will happen with storms. What if some wheat just got some nice full heads and a storm occurs? The storm will break the heads off and ruin the wheat. Another problem with drought and storms is that right after a drought the plants would be very weak. So when the storms come they will wash the plants away. Along with the storms there will be floods. The floods will wash the topsoil off of the fields into nearby creeks and rivers. The farmers won't have any topsoil to grow their plants on and the state will have to spend a lot of money to dredge the topsoil from the creeks and rivers.

In the desert there are places called fringe lands. Fringe lands are strips of land that are like a desert when it is very hot, but can grow things when there is enough rain. When global warming occurs there will be no fringe lands, therefore making the deserts larger.

Another problem with an increase in CO2 is that certain plants need certain temperatures in order to grow. For example: Florida produces a large number of oranges, when global warming occurs, what will orange farmers do? Florida is near the equator, and is already very hot, so when global warming occurs it will be even hotter. The oranges won't be able to grow very well. The only way for the farmers to grow oranges is to move them further and further north. How will they do that? They can't sell all their land, equipment, and homes, then buy land north of Georgia, can they? No, because then those other states would become overpopulated. There would be too many cars, people, and CO2.

So, what is your opinion of global warming's effect on agriculture? Do you think it will help or hurt? Destroy or create? Again, some scientists think it will help, others think it will hurt. Overall, global warming will effect agriculture very much

Human Health

Effects of global warming on human health

Climate change poses unique challenges to human health. Unlike health threats caused by a particular toxin or disease pathogen, there are many ways that climate change can lead to potentially harmful health effects. There are direct health impacts from heat waves and severe storms, ailments caused or exacerbated by air pollution and airborne allergens, and many climate-sensitive infectious diseases.

Realistically assessing the potential health effects of climate change must include consideration of the capacity to manage new and changing climate conditions. Whether or not increased health risks due to climate change are realized will depend largely on societal responses and underlying vulnerability. The probability of exacerbated health risks due to climate change points to a need to maintain a strong public health infrastructure to help limit future impacts.

Increased risks associated with diseases originating outside the United States must also be considered be- cause we live in an increasingly globalized world. Many poor nations are expected to suffer even greater health consequences from climate change. With global trade and travel, disease flare-ups in any part of the world can potentially reach the United States. In addition, weather and climate extremes such as severe storms and drought can undermine public health infrastructure, further stress environmental resources, destabilize economies, and potentially create security risks both within the United States and internationally.Source :http://www.globalchange.gov

The Effects of Global Warmning - Hot Sun

The Biggest Effect of Global Warming is Caused By The Sun

The Sun is the Main Cause of Global Warming?

Most people think that Effects of Global Warming that we see today is caused by Humans alone. This is not true in my view. The problem that Carbon di Oxide causes is that it does not allow the sun's radiation already received by the earth to be radiated back as CO2 traps it in the earth's atmosphere and heats it up.

But why is that people are not bothered about the sun itself?

The sun is slowly growing into a large red giant. it will continue to grow. Scientists and Astronomers have already predicted that in 2012 the some thing drastic will happen on the sun. The sun will emit loads and loads of rays and radiation that will disrupt all the radio, radar, mobile, power grids and all other communication networks including all our satellites.

We Have To Move Away From The Sun.

As the sun grows in size, its heat and other radiations will also increase. This means global warming problem will increase many folds. All the earth's ice will melt because of the Effect of Global Warming. The water in the sea will rise by more than 260 feet. That is not the end. We may also get fried on earth because of the sun's intense heat. So we have to move away from the Sun.

How Do We Move The Earth Away From The Sun?

NASA is already working out a plan. They will send a high speed satellite with adequate mass. This satellite will hit a carefully chosen meteorite whose path is likely to be close to earth or moon. By hitting the satellite, its path will alter very little and it will come closer to the moon, may be 10000 kilometers. Any thing closer it will hit the moon which they don't want to happen. The meteorite and moon will exert gravitational force on each other.

Using Moon We Will Move The Earth Away From The Sun

Once the moon moves outwards from its original orbit, it will cause a change in the earths orbit also. The calculations by NASA is such that the earth will get pulled by the moon and will start going away from the sun slowly about 3 cm every year. it is small amount but finally we will accelerate away and remain in such an orbit that as the Sun grows in size and heat, the earth will continue to remain in the same habitable cooler orbit.

Will The Earth Move as NASA is Planning?

This is not just theory. NASA will be able to move the earth to keep it cool. They have been sending satellites for a long time and humans have gone to space and moon. So I think we can believe what they say. Wait and Watch.

Alternative fuels

Alternative fuel

Alternative fuel (alternate fuel), also known as non-conventional fuels, is any material or substance that can be used as a fuel, other than fossil fuels, or conventional fuels of petroleum (oil), coal, propane, hydrogen, and natural gas. The term "alternative fuels" usually refers to a source of which energy is renewable.

The main purpose of fuel is to store energy in a form that is stable and can be easily transported from the place of production to the end user. Almost all fuels are chemical fuels, that store chemical potential energy. The end user is then able to consume the fuel at will, and release energy, usually in the form of heat for a variety of applications, such as powering an engine, or heating a building.

Some well known alternative fuels include biodiesel, ethanol, butanol, chemically stored electricity (batteries and fuel cells), hydrogen, methane, natural gas, wood, vegetable oil, biomass, and peanut oil.

In the year 2000, there were about eight million vehicles around the world that ran on alternative fuels, indicating the increasing popularity of alternative fuels {citation needed}. There is growing social interest, and an economic and political need for the development of alternative fuel sources. This is due to general concerns of sustainability, both environmental, economic, and geopolitical. A primary concern is that the fact that the use of conventional fuels directly contributes to the global warming crisis. Another concern is the problem of peak oil, which predicts a rising cost of oil derived fuels caused by severe shortages of oil during an era of growing energy consumption. According to the 'peak oil' phenomenon, the demand for oil will exceed supply and this gap will continue to grow, which could cause a growing energy crisis by the year 2010 or 2020. Lastly, the majority of the known petroleum reserves are located in the middle east. There is general concern that worldwide fuel shortages could intensify the unrest that exists in the region, leading to further conflict and war.Source from globalwarming.org.in

The Earth Will Blackout in 2013

Not the Effect of Global Warming ?

It is said that the earth is going to blackout in 2013. This is not an Effect of Global Warming or an Earth Quake or any Volcano eruption. Watch the Video below.




It will be like a scene where mobile phones go on the blink, GPS is knocked out, TVs go blank and the world is plunged into chaos. It is being caused a large unprecedented solar storm, which is essentially violent eruptions in the sun, can eject destructive radiation and charged particles into space. Looks like disaster flicks aren’t too removed from reality since all this could well be the potential result of a gigantic solar storm, according to a new report by NASA. The report, a warning, says Earth and space are coming together in a way that’s new to human history .These are closely connected to magnetic fields – which are hazardous for satellites and space stations. High-tech systems are critical for life as we know it today. Everything that we depend on and take for granted – GPS navigation, air travel,  internet banking services (even your credit card transaction needs a satellite) and emergency radio communications – can all be knocked out by intense solar activity

To get an idea of scale, a massive solar storm could result in 20 times more damage than the devastation caused by Hurricane Katrina which hit south-eastern US in August 2005. The storm killed 1,800 people and caused damages worth $81 billion. There are reports of a geomagnetic storm sparked by a huge solar flare that swept over the Earth in 1859. Telegraph wires shorted out and set houses on fire. A brilliant aurora was seen in Hawaii—so bright that  “people could read newspapers by [its] red and green glow.” Scientists predict  that in May 2013, the sun’s solar cycle will peak at about the same level as in 1859. (This content courtesy a post on Gawker.com)

Some good news is that some of the damage and destruction can be avoided with warning of an impending solar storm. There is technology to put satellites in ‘safe mode’ and disconnect transformers to protect them from destructive electrical surges. The key for Bogdan lies in NASA and NOAA collaborating. “NASA’s fleet of heliophysics research spacecraft provides us with up-to-the-minute information about what’s happening on the sun. They are an important complement to our own GOES and POES satellites, which focus more on the near-Earth environment.” The task of accurately forecasting a solar storm lies with the National Oceanic and Atmospheric Administration (NOAA) of the US. “Space weather forecasting is still in its infancy, but we’re making rapid progress,” said Thomas Bogdan, director of NOAA’s Space Weather Prediction Center in Colorado.