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Congrats Dr. Suresh Babu for bagging the prestigious Shanthi Swarup Bhatnagar Prize 2017. CLICK HERE  Proud of you...!!! Wishing you and team more success !!

Concentrations of the greenhouse gas carbon dioxide (CO2) in the global atmosphere has surpassed 400 ppm  for the first time in human history in April. As on May 03, 2014 the value is still higher 401.80 ppm. Read more from official website http://keelingcurve.ucsd.edu/ Here is the screen shot. Courtesy: Scripps Institute of Oceanography http://keelingcurve.ucsd.edu/

Temperature data from four international science institutions. All show rapid warming in the past few decades and that the last decade has been the warmest on record. Courtesy:Nasa Global CLimate change http://climate.nasa.gov/scientific-consensus

High El Nino -Southern Oscillation (ENSO) activity in the late 20th century is a footprint of global warming says a recent study. An international team of scientists spearheaded by Jinbao Li and Shang-Ping Xie, while working at the International Pacific Research Center, University of Hawaii at Manoa, has compiled 2,222 tree-ring chronologies of the past seven centuries from both the tropics and mid-latitudes in both hemispheres. Their work is published in the June 30, 2013 online issue of Nature Climate Change . Li, J., S.-P. Xie, E. R. Cook, M. Morales, D. Christie, N. Johnson, F. Chen, R. D'Arrigo, A. Fowler, X. Gou, and K. Fang (2013): El Niño modulations over the past seven centuries. Nature Climate Change . http://dx.doi.org/10.1038/nclimate1936 Caption: This graph shows El Niño variability derived from tree rings (blue) and instrumental measurements (red). The dashed lines indicate boundary for natural variability. Recent El Niño behavior is largely beyo...

2012 was the ninth warmest year since 1880. The map at the top depicts temperature anomalies, or changes, by region in 2012; it does not show absolute temperature. Reds and blues show how much warmer or cooler each area was in 2012 compared to an averaged base period from 1951–1980. For more explanation of how the analysis works, read  World of Change: Global Temperatures. The average temperature in 2012 was about 14.6 degrees Celsius (58.3 degrees Fahrenheit), which is 0.55°C (1.0°F) warmer than the mid-20th century base period. The average global temperature has increased 0.8°C (1.4°F) since 1880, and most of that change has occurred in the past four decades. Read more:  http://earthobservatory.nasa.gov/IOTD/view.php?id=80167&src=eoa-iotd

Greenland is an immense, glittering expanse of snow and ice. But in recent summers, satellites have been observing less “glitter” from the Northern Hemisphere’s largest ice expanse due to surface melt and other changes caused by warmer temperatures. The summer of 2012 found Greenland darker than it has been since ice-sheet-wide observations began in 2000. The darkest areas occurred around the perimeter of the island—the lowest elevations, where melting is most significant—but virtually the entire ice sheet showed below-average reflectivity. Courtesy: Climate Watch Magazine by NOAA http://www.climatewatch.noaa.gov/article/2012/less-glitter-greenland-ice-sheet-continued-to-darken-in-summer-2012 Map by NOAA Climate.gov team, based on NASA MODIS albedo data provided by Jason Box, The Ohio State University. Inset image is from NASA’s Terra satellite, courtesy the  LANCE MODIS Rapid Response Project.  Reviewed by Jason Box.

Climate model projections that show a greater rise in global temperature are likely to prove more accurate than those showing a lesser rise. The study was published in the journal - Science. National Center for Atmospheric Research scientists John Fasullo and Kevin Trenberth analyzed how well 16 leading sophisticated climate models reproduce observed relative humidity in Earth's tropics and subtropics. They used observations from two NASA satellite instruments - the Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua spacecraft and the Clouds and Earth's Radiant Energy System (CERES) . Climate model projections showing a greater rise in global temperature are likely to prove more accurate than those showing a lesser rise, according to them. Read in detail:  https://www2.ucar.edu/atmosnews/news/8264/future-warming-likely-be-high-side-climate-projections-analysis-finds http://www.nasa.gov/topics/earth/features/earth20121108.html

There are many proposals to reduce the climatic impact and change because of the Global Warming. Some of them tries to address the causative mechanism while some treats symptoms..... Geo-Engineering is d eliberate large-scale engineering and manipulation of the planetary environment to combat or counteract man made changes in atmosphere. Have a look at the three proposals to reduce increasing temperature. Click on the image of use the link below for a recent article in BBC. More details:  http://news.bbc.co.uk/2/hi/technology/8338853.stm

An apparent inconsistency has been diagnosed between interannual variations in the net radiation imbalance inferred from satellite measurements and upper-ocean heating rate from in situ measurements, and this inconsistency has been interpreted as ‘missing energy’. Where was it going? Now Scientists come up with an answer..... "Missing Energy" is in the Ocean  "Our data show that Earth has been accumulating heat in the ocean at a rate of half a watt per square meter (10.8 square feet), with no sign of a decline," Loeb said. "This extra energy will eventually find its way back into the atmosphere and increase temperatures on Earth." Read more: http://www.jpl.nasa.gov/news/news.cfm?release=2012-029 http://www.dailymail.co.uk/sciencetech/article-2093947/Nasa-solves-mystery-Earths-missing-energy--going-sea-says-space-agency.html?ito=feeds-newsxml Paper:  http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo1375.html#/access doi:10.1038/ngeo...

The global average surface temperature in 2011 was the ninth warmest since 1880, according to NASA scientists. Observe an updated analysis that shows temperatures around the globe in 2011 compared to the average global temperature from the mid-20th century. http://www.nasa.gov/topics/earth/features/2011-temps.html  The average temperature around the globe in 2011 was 0.92 degrees F (0.51 C) warmer than the mid-20th century baseline. "We know the planet is absorbing more energy than it is emitting," said GISS Director James E. Hansen. "So we are continuing to see a trend toward higher temperatures. Even with the cooling effects of a strong La Niña influence and low solar activity for the past several years, 2011 was one of the 10 warmest years on record." Animation can be seen here, http://www.nasa.gov/mp4/616923main_GISStemperature2011_withColorbar.mp4 Understand  More: http://www.nasa.gov/topics/earth/features/2011-temps.html# http://data.giss.nasa.go...

Global warming caused by greenhouse gases delays natural patterns of glaciation suggests a study co-authored by a University of Florida researcher and published online Jan. 8 in Nature Geoscience. The Earth's current warm period that began about 11,000 years ago should give way to another ice age within about 1,500 years, according to accepted astronomical models. However, current levels of carbon dioxide are trapping too much heat in the atmosphere to allow the Earth to cool as it has in its prehistoric past in response to changes in Earth's orbital pattern. data indicate that the next ice age will likely be delayed by tens of thousands of years. Good news ...?                 NO! Ice sheets like those in western Antarctica are already destabilized by global warming, they eventually slough off and become a part of the ocean's volume, it will have a dramatic effect on sea level. Read more here :  http://www.physorg.com/news/...

Check this latest paper discussing how the influence on Southern Hemisphere climate of the Antarctic ozone hole is slowly dissipating and will be progressively overtaken by human-induced emissions of carbon dioxide and other greenhouse gases... Ozone depletion over the past three to four decades has had a marked impact on Antarctic and Southern Ocean climate.   However, this will shortly be overwhelmed by the influence of greenhouse gases..... discusses this study...... http://www.nature.com/ngeo/journal/v4/n11/full/ngeo1296.html http://www.physorg.com/news/2011-11-greenhouse-gases-overpower-ozone-hole.html NATURE GEOSCIENCE | REVIEW Signatures of the Antarctic ozone hole in Southern Hemisphere surface climate change. David W. J. Thompson, Susan Solomon, Paul J. Kushner, Matthew H. England, Kevin M. Grise & David J. Karoly Nature Geoscience 4, 741–749 (2011) doi:10.1038/ngeo1296