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Showing posts with label environment. Show all posts
Showing posts with label environment. Show all posts

Wednesday, June 6, 2012

Top 20 Countries with CO2 Emissions




Every country in the world contribute different amount of heat trapping gases to the atmosphere. The following list of 20 countries for CO2 emissions is compiled by the Energy Information Agency (Department of Energy) that estimates carbon dioxide emissions from all sources of fossil fuel burning and consumption. 


Here is the list of top 20 countries in the world with highest carbon dioxide emissions.  A graph of the top 20 carbon dioxide emitters is also available.



Country

Total Emissions
(Million metric tons of CO2)
Per Capita Emissions
(Tons/capita)
1.
China
6017.69
4.58
2.
United States
5902.75
19.78
3.
Russia
1704.36
12.00
4.
India
1293.17
1.16
5.
Japan
1246.76
9.78
6.
Germany
857.60
10.40
7.
Canada
614.33
18.81
8.
United Kingdom
585.71
9.66
9.
South Korea
514.53
10.53
10.
Iran
471.48
7.25
11.
Italy
468.19
8.05
12.
South Africa
443.58
10.04
13.
Mexico
435.60
4.05
14.
Saudi Arabia
424.08
15.70
15.
France
417.75
6.60
16.
Australia
417.06
20.58
17.
Brazil
377.24
2.01
18.
Spain
372.61
9.22
19.
Ukraine
328.72
7.05
20.
Poland
303.42
7.87
































The list and the graph compiled by Energy Information agency shows that major carbon dioxide emission are made by developed countries and major emerging economy nations lead in total carbon dioxide emissions. Developed countries are having typically high carbon dioxide emissions and some developing countries lead in the growth rate of carbon dioxide emissions. Obviously these major carbon dioxide emissions by big developed and developing countries are at the core of the challenges the world community faces in finding effective and equitable solutions.

Sunday, January 8, 2012

What Do We Know About Climate Change?



Climate change science had played a main role for understanding the fundamentals of global warming. Now there is no doubt in the main stream scientific community that the earth is warming, and increasing evidence shows that humans had played significant part in it.

For instance we know that the specific gases like carbon dioxide and methane play a major role in determining the Earth’s climate by preventing heat from escaping the atmosphere. Researchers had documented that increased concentration of such environment harming gases are due to of human activities such as burning of fossil fuels, deforestation and land degradation, cattle ranching, and rice farming. Human’s part in global warming has been documented in a growing number of studies.

In 2001, the IPCC’s assessment of the scientific basis of climate change, the experts had drawn three main conclusions:

  1. Human activities are and will continue to keep on changing the composition of the atmosphere. The IPCC stated that emissions of greenhouse gases and aerosols due to human activities continue to change the atmosphere in ways that are expected to affect the climate. Adding that trends of greenhouse gas emissions from human activities point further upward, the scientists force on point of significant emission reductions are necessary to stabilize the climate.
  2. Recent global warming is caused by human activities.  The IPCC states in its assessment, “There is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities”.
  3. Climate changes do exists or in the IPCC’s own words: “An increasing body of observations gives a collective picture of a warming world and other changes in the climate system”.

Climate experts using more advanced computer models suggested that the planet temperature will rise over the next generations as a result of this growing concentration of heat trapping gases in the atmosphere. According to experts global warming in 20th century was largest during any century over the past 1,000 years for the Northern hemisphere, and about this 21st century global warming its predicted that there will be more rapid climate change than any time in recorded history.

Thursday, October 6, 2011

10 Things that Can Wipe Out Life from Earth



Year 2012 is almost near because the time is running faster than our thoughts and according to Mayans Theory that the time will end on 21st Dec 2012, according to that doomsday is near. The extinctions events that I searched out and going to write here potentially can happen in some cases and few from them had happened already in the past. Like end of the Dinosaurs.

Well read this what I searched and please feel no hesitation for adding your comments about this list.

1. Developments Made by Human


Because of lot of outstanding developments in different aspects of life mainly in field of science Human thinks that nature could not harm. But the truth is totally different from that because humans themselves had developed methods of self-destruction. Like nuclear weapons according to figures there are enough nuclear weapons on earth made by human that can easily wipe out the life from the surface of the planet earth.  Only one nuclear war can destroy the planet.

I hope and pray that the planet earth will remain peaceful. Otherwise we are on the edge of extinction already by own human hand made weapons.

2. Gamma Ray from Sky Can Wipe Out Life from Earth


Just think that you are sitting under the sky in night and staring the stars and suddenly a light flash up on the sky, a star had exploded. Before you can say anything everyone on Earth will die.

A Gamma Ray Burst can kill the life on Earth without giving chance for next breath. That can happen with full power Gamma Ray Burst even if that happen with lighter power than probably half of life on planet Earth will wipe out and rest of half earth’s Ozone layer will be ripped and it will become Well Come Planet for UV radiation.

3. Oceanic Overturn


Oceans are made of salty water but its saltier up top than down below. Oceanic Overturn means that deeper water replacing the water up top. Now question is that what’s wrong with that then remember Anoxic Events?  The depth water is having less oxygen means that the critters on the surface and middle depths will be dead.

4. Hydrogen Sulfide Emissions


This may had happened during the Permian-Triassic extinction event that a warming trend had changed the balance between Plankton and bacteria that reduce Sulfate.

Just think that if the massive emissions of hydrogen sulfide suddenly rise from ocean and poisoned everything on land and sea or it weakened up the Ozone layer so that UV radiation can find easy way on Earth.

5. Anoxic Events


Oceanic anoxic events happen when the oxygen reduces than standard quantity below the surface levels. Though anoxic events had not happens in last millions of years, but geological record shows that they had happened many time in the past. They might had caused the massive extinctions on the planet earth long before.

6. Clathrate


Clathrate is a water-covered methane. If this water covered methane break apart it will release the gas into the atmosphere and that will accelerate the Global Warming.

7. Global Warming


About global warming every one knows that is major big problem right at moment which world is facing now and world all countries had gathered for this problem in Copenhagen.

Because of global warming ice on the poles and glaciers all over the world are melting down quickly the sea levels are getting high. Some of the scientists are now saying that polar ice will melt over till 2014.

8. Global Cooling


If earth get so clod due to of some reasons, this will cause death to may polar and temperate region animals which result a massive migration to the equator, and make more of the earth a desert. But then it will be easy to find water because most of it will become snow or ice. This even may be human can survive rather than global warming.

9. Massive Impact


A big rock in space heading towards earth can easily wash out life from the whole planet.  The big rock 1st will block the light from sun and that will cause death for plant and earth temperature will go down.

If the rock is made of sulfur then there will be acid rain also. Impact of the massive rock will raise huge tsunamis in oceans and acid ran would burn off the forests.

10. Falling of Sea Level


If sea level drop down severely that will reduce the area around the Continental Shelf, which cause a massive marine extinctions means that all the life in the ocean will die. This change will affect the weathers and climate also, and that drastic change will lead earth to a mass extinctions.