Effects Of CO2 On Sea & Role Of Human Being.

Ocean p.H Imbalance:
The world’s oceans,which absorb about a third of the carbon dioxide emitted from burning fossil fuels, are becoming more acidic.
How CO2 affects ocean’s acidity:
# when carbon dioxide dissolves in seawater, it forms carbonic acid, which releases hydrogen, making the water more acidic.
# Hydrogen ions then combine with carbonate ions to form bicarbonate.
# This reaction makes carbonates, which are the building blocks of many marine organizes, less available and could change the ocean’s ecosystem.
How acidity affects marine life:
# Can eat away the shells of crabs, oyster, clams and microscopic organisms called krill and pteropods.
# Can inhibit the rebuilding of thrir shells, eventually causing them to die off.
# Can lower the amount of food available for fish at the higher end of the food chain.

Global Warming is the universal problem and challenge to the human being

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Role of human being for the Global Warming:Combating global warming is very much in the hand of the mankind, provided all nations and people like it up as their priority agenda and and employ their scientific and technical capabilities to find cost effective workable solution without compromising the high standard of living in the developed countries and aspirations of developing countries to achive the same. Global warming is avoidable, provided all nations and the humanity comes together and makes a determined effort. Spaceship earth can be saved and mankind can continue its exiting exploration and understanding of the universe by maintaining the eco-system.

Climate change in the resent past

Global average CO2 concentrations were fairly constant till 1930. There was a little “Ice Age” in the period 1400-1900. Ever since industrialization, however,CO2 levels in the atmosphere have been going up and, as a result, global temperature.
Since 1960, a close watch has been kept on CO2 levels in the atmosphere. The total global emission of CO2 was 27.2 billion tons.
Global concentrations of CO2 reached the highest level in 2007, since record-keeping began in 1958, according to the World Metrological Organization. According to it, samples from 40 countries revealed that the level of CO2 in the air reached 381 ppm, a concentration not seen in 400000 years. The industrial revoltion, in particular, caused a rapid rise of CO2.
Global warming of 0.2 C per decade is highly likely, resulting in global average projected warming of 2.2 C TO 4 C by the end of the current century.
Climate change threatens to ruin cultivable land, resulting in a crop failures. It will lead to rise in sea levels, which will threatens the coastal infrastructure. Glaciers are melting globally.
Melting of glaciers will also lead to reduced summer flow. These are no longer abstract and remote concept.
There are changes in amount and pattern of precipitation, resulting in increases in frequency and intensity of the extreme wheather, including hurricanes. This will lead to various effects, including the changes in agricultural yields. Global warming will also lead to the extinction of many species. There will be rise in number of diseases – malaria,dengu,fever etc. Apart from the increasing the average temp of the atmosphere, the build-up in CO2 concentration in the atmosphere is also in water to produce acid, which, in turn, is decreasing the ph of the oceans.

Global warming General Scenario

Introduction : Due to intense human activity, in general, and consumption of fuels, the greenhouse gas i.e carbon dioxide in atmosphere is going up. The increase in absorption of the sun’s heat and consequent higher temperature of the atmosphere could have have drastic effect on entire global eco-system.
Global warming in the past : Scientist believes that universe created about 14 billion years ago and expanding since then.
There are 100 billion galaxies in the universe and each galaxy contains 200 billion sun like stars of different sizes.Many of these stars have the planets going around them, like the earth does around the sun.
Earth came into being 4.5 billion years ago. It was hot to start with and has cooled gradually. Life began on the earth about 3.5 billion ago and has, since then, undergone many changes resulting in many mass extinction events ( Holocene age,Tertiary cretaceous,Jurassic park,Triassic Permian,Carboniferous Devonian,Silurian Ordovician )
An extinction event is a sharp decrease in the number of species in a relatively short period of times,affecting mostly birds,mammals,reptiles,amphibians,fish and other simpler forms.
Main extinction causes include basalt eruption,global cooling or warming,asteroid or comet impacts and falling sea levels.
One of the most violent periods in the history of the earth is the disappearance of dinosaurs around 65 million years ago. They appeared around 230 million years back and were for almost 165 million years. During the period,they were not only roaming all over the world.

Trees : A Solution For The Global Carbon Dioxide Problem

Of the current global environmental problem, the excessive release of the carbon dioxide from the combustionof the fossil fuels and it is leading to the Global warming. Deliberately planted forests bind the CO2 through the photosynthesis and are then removed from the global CO2 cycle by burial.
For the time, humankind will give something back to the nature that we have taken away before.
Whereas other environmental problems can, at least in principle, be solved by the appropriate modern technology but there is no realistic solution for the CO2 problem.
At present a daunting 32 gigatons of CO2 are released into the atmosphere every year. The only possible way to bind sufficiently large quantities of CO2 from the atmosphere is photosynthesis.
However, the resulting biomass cannot be burned or composted, because this would release the bound CO2. planting forests whose wood will subsequently be buried. Possible burial sites include open brown coal pits or other surface mines. These should be filled with wood and covered wit soil. Cut off from the air in this manner, the wood would not change, even over long periods.
It could in principle be dug up in the future and used. According to estimation made, we would have to plant a little over 1 billion hectares of forest in order to bind all of the carbon dioxide produced in the year.
So the planting the tree will surely help to control the Global Warming