Global Warming and No Dimming!

My dad’s brother who came over for dinner from Goa, brought to my notice a term I had not heard of before, Global Dimming.

What is Global Dimming?

Global Dimming is the process in which the sun’s radiance does not reach the earth’s surface. The effect of global dimming is probably due to the increased presence of aerosol particles in the atmosphere.

Aircraft ContrailsA NASA photograph of aircraft contrails, taken from I-95 in northern Virginia, January 26, 2001 by NASA scientist Louis Nguyen.

Effects of Global Dimming:

This process caused a cooling on the earth’s surface, a 5% reduction over the three decades from 1960–1990. Global dimming’s cooling effect may have partially masked the effect of greenhouse gases on global warming.

Deaths due to Global Dimming:

Climatologists studying this phenomenon believe that the reflection of heat have made waters in the northern hemisphere cooler. As a result, less rain has formed in key areas and crucial rainfall has failed to arrive over the Sahel in Northern Africa. In the 1970s and 1980s, massive famines were caused by failed rains which climatologists had never quite understood why they had failed.

China Red GateThe answers that global dimming models seemed to provide, the documentary noted, has led to a chilling conclusion: “what came out of our exhaust pipes and power stations [from Europe and North America] contributed to the deaths of a million people in Africa, and afflicted 50 million more” with hunger and starvation.

Global Dimming hiding the Wrath of Global Warming:

The above impacts of global dimming have led to fears that global dimming has been hiding the true power of global warming. This brings us to the part where in the last few years how the world has changed with global warming.
Global TemperaturesWhat is Global Warming:

For those who still are not aware of Global Warming it is the observed increase in the average temperature of the Earth’s atmosphere and oceans in recent decades.

Effects of Global Warming:

So what if the earths temperature is increasing you may say, the effects of global warming are higher temperatures, lessened snow cover, rising sea levels, and weather changes may influence not only human activities but also ecosystems. Some species may be forced out of their habitats (possibly to extinction) because of changing conditions, while others may flourish.

Similarly, changes in timing of life patterns, such as annual migration dates, may alter regional predator-prey balance. The effect of advanced spring arrival dates in Scandinavia of birds that overwinter in subsaharan Africa has been ascribed to evolutionary adaptation of the species to climactic warming.

Do you remember Katrina, New Orleans Flooding, Mumbai going under water; Tsunami’s all of them can be related to changes in the earth’s temperature. We need to drastically change our lifestyles if we wish that our generations live on for many more years to come.

Atlanta Thermal View On May 11-12, 1997, NASA used a specially outfitted Lear Jet to collect thermal data on metropolitan Atlanta, Georgia. Nicknamed “Hot-Lanta” by some of its residents, the city saw daytime air temperatures of only about 26.7 degrees Celsius (80 degrees Fahrenheit) on those days, but some of its surface temperatures soared to 47.8 degrees Celsius (118 degrees Fahrenheit). In this image, blue shows cool temperatures and red shows warm temperatures. Pockets of especially hot temperatures appear in white.

Hurricane FlorenceHurricane Florence is the sixth named storm of the 2006 Atlantic Hurricane Season. Florence started as a tropical depression north and east of the South American coast, and since forming on September 3, it has grown in power and size only very gradually. As of September 11, 2006, it had become a Category One hurricane. Its center was not predicted to make landfall, but the inner portions of the hurricane were brushing against Bermuda on September 11 when this image was taken. The storm brought powerful winds, rain, and strong storm-generated surf as it passed as close as 100 kilometers (60 miles) from the island, according to Reuters.

Rocky Mountains Thick white smoke seeps through the valleys of the ranges of the Rocky Mountains that run through Idaho, Washington, and Oregon, in this photo-like image taken on September 12, 2006. At the time, firefighters were monitoring 29 wild fires in the three states, said the National Interagency Fire Center. Many of the fires were started by lightning, as suggested by the clusters of fires (represented by red dots) seen in this image.

Please begin to care for our mother till then. Mother nature is dying, and as a friend of mine put it, shes not dying alone shes gonna take all of us with her.


Global Warming

Global Dimming

Global Dimming & Global Warming

Intresting Stuff

Global warming risk ‘much higher’

Images of Mother Earth

Indian Ocean Experiment

Global warming – the blame is not with the plants

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