Where do we put all the carbon?
How do we get more energy from the sun?
pls. answer both questions otherwise don't answer
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Carbon exists in lots of places around the world. Stored in all living things, dissolved in the oceans, and buried in deposits of coal, oil, and gas.
We need some carbon dioxide in the atmosphere to create the natural greenhouse effect, if there was no carbon dioxide at all in the atmosphere the average temperature around the Earth would be around -20C.
The problem we have at present is that the carbon that has been locked away in coal, oil, and gas for millions of years are being released really quickly and overwhelming the Earth’s mechanisms for absorbing that carbon and keeping the amount of carbon dioxide emitted, and the amount absorbed roughly equal.
The first, best, and probably cheapest answer to ‘where do we put all the carbon’ is to leave it in the ground in the first place. If we do this, we need to get our energy from other resources like renewable energy, and nuclear power.
The second, and probably worst answer is ‘Who cares?’. We could just let it build up in the atmosphere and accept that the planet will get rapidly hotter with all the associated impacts on life on Earth.
A third option which has been talked about a lot is to capture the carbon emissions from power stations, refineries and so on and inject it back into the Earth where it doesn’t threaten the atmosphere. While this will work in theory, it has been proving difficult to make it happen in practice. Running the carbon capture equipment on a power station lowers its efficiency so the electricity it produces is more expensive. There are also concerns about how safe the pipelines would be, and about how secure the storage reservoirs are – if the carbon dioxide leaks away at say 5% per year, you haven’t really captured and stored it.
2.I guess in general we are using energy absorbed from the Sun in one form or the other. Fossil fuels were formed from dead remains of flora and fauna which once thrived by either photosynthesis (requires sunlight) or feeding on plants. Nowadays more emphasis is laid on use of renewable sources of energy such as wind energy etc. I guess wind energy owes one of the factors to differential heating of different regions which is some form of solar energy converted into different other forms.
hope it helps
We need some carbon dioxide in the atmosphere to create the natural greenhouse effect, if there was no carbon dioxide at all in the atmosphere the average temperature around the Earth would be around -20C.
The problem we have at present is that the carbon that has been locked away in coal, oil, and gas for millions of years are being released really quickly and overwhelming the Earth’s mechanisms for absorbing that carbon and keeping the amount of carbon dioxide emitted, and the amount absorbed roughly equal.
The first, best, and probably cheapest answer to ‘where do we put all the carbon’ is to leave it in the ground in the first place. If we do this, we need to get our energy from other resources like renewable energy, and nuclear power.
The second, and probably worst answer is ‘Who cares?’. We could just let it build up in the atmosphere and accept that the planet will get rapidly hotter with all the associated impacts on life on Earth.
A third option which has been talked about a lot is to capture the carbon emissions from power stations, refineries and so on and inject it back into the Earth where it doesn’t threaten the atmosphere. While this will work in theory, it has been proving difficult to make it happen in practice. Running the carbon capture equipment on a power station lowers its efficiency so the electricity it produces is more expensive. There are also concerns about how safe the pipelines would be, and about how secure the storage reservoirs are – if the carbon dioxide leaks away at say 5% per year, you haven’t really captured and stored it.
2.I guess in general we are using energy absorbed from the Sun in one form or the other. Fossil fuels were formed from dead remains of flora and fauna which once thrived by either photosynthesis (requires sunlight) or feeding on plants. Nowadays more emphasis is laid on use of renewable sources of energy such as wind energy etc. I guess wind energy owes one of the factors to differential heating of different regions which is some form of solar energy converted into different other forms.
hope it helps
allison2134:
i think u are right
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