Climate Change
Climate change refers to any significant change in the measures of climate lasting for an extended period of time. In other words, climate change includes major changes in temperature, precipitation, or wind patterns, among other effects, that occur over several decades or longer. It is a spatially differentiated process. Although many areas could experience temperature increases on the order of 1.5–4.5°C. Patterns and amounts of precipitation are also likely to change, and it is projected that rainfall will increase in some areas and decrease in others. An anthropogenic greenhouse gas emission is the major contributor for climate change. CO2 and other green house gases can trap the heat and when the concentration of these gases in the atmosphere is higher, more heat is being trapped and as a result the atmospheric temperature gets increased.
In the 1860s Irish scientist John Tyndall explored and documented the remarkable power of greenhouse gases (GHGs). Carbon dioxide, the single most important greenhouse gas emitted by human activities, is responsible for 85% of the increase in radiative forcing over the past decade. The amount of CO2in the atmosphere reached 390.9 parts per million in 2011, or 140% of the pre-industrial level of 280 parts per million. Methane (CH4) is the second most important long lived greenhouse gas. Atmospheric methane reached a new high of about 1813 parts per billion (ppb) in 2011, or 259% of the pre-industrial level, due to increased emissions from man-made sources. Nitrous oxide (N2O) is emitted into the atmosphere by both natural (about 60%) and manmade sources (approximately 40%), including oceans, soil, biomass burning, fertilizer use, and various industrial processes. Its atmospheric concentration in 2011 was about 324.2 parts per billion, which is 1.0 ppb above the previous year and 120% of the pre-industrial level.
The factor- Global warming potential (GWP) is very important since it is a measure of relative power of a given amount of different greenhouse gases. This index measures the power of the compound as a greenhouse gas relative to carbon dioxide. GWP of different gases are given below:



Carbon dioxide (CO2)


Methane (CH4)


Nitrous oxide (N2O)


Hydroflurocarbons (HFCs)


Perflurocarbons (PFCs)


Sulfurhexafluoride (SF6)


In 2001, Intergovernmental Panel on Climate Change (IPCC) proposed that as a after effect of global warming, sea level may rise anywhere from 90 to 880mm (3.5-35”) by 2100. As per the available data, US is in first place in the contribution of green house gases into the atmosphere followed by China, which is suspected to be the first by 2025 due to its growing population.
MICROBIAL FUEL CELLS: Can a microbe make electricity from bad wine??
A team of scientists in India demonstrates that a microbe can act as a biocatalyst in a microbial fuel cell and produce electricity. An observation that may bring a breakthrough in green technology...
United States passes Energy-Climate bill
President Barak Obama succeeded in getting the Climate bill passed in the US House of Representatives. This is an important development in the recent history of United States on a clear move to develop less carbon technologies.
Corals are at the risk of extinction! Those elegant wonder in the pristine blue waters are always a feast for eyes, which are now at the verge of disintegration.
As little drops of water makes the mighty ocean and little deeds of love makes the heaven above, our little acts of wisdom makes this earth cool enough to live. You can help to reduce the trouble of green house gas emission by readjust the way you reflect, proceed and exist, check it out…..
Negotiations toward a new global climate change
(Climate Change Conference Poznan, Poland, 1-12 December 2008)
Poznan, Poland is on limelight from 1st to 12th December. Stage has been setup for the United Nations climate change conference here. The two-weekmeeting, the fourteenth conference of the 192 Parties to the United Nations Framework Convention on climate change (UNFCCC) and the fourth meetingof the 183 Parties to the Kyoto Protocol, is the half-way mark in the negotiations on an motivated and successful international climate change deal.