There is a natural cycle in which animals add carbon dioxide to the air and plants remove it, thus maintaining a stable concentration of carbon dioxide over a very long period of time. Humans are part of this natural cycle.
Since the start of the Industrial Age, humans have been adding additional carbon dioxide to the atmosphere, increasing the proportion by around 35 per cent, from 260-280 parts per million (ppm) to the present 380 ppm. We do this by burning fossil fuels, manufacturing cement and by deforestation.
We can reduce our impact on carbon dioxide concentrations by reducing and eventually eliminating our consumption of coal, oil and natural gas, by finding alternative processes for cement manufacture, including the capture and sequestration of gas produced, and by ceasing deforestation - even allowing some forests to return.
Humans have been digging up and burning fossil fuels for 250 years. Burning this coal, oil and natural gas for industry, transport and to generate electricity has released billions of tons of extra carbon dioxide into the atmosphere. We have also cut down forests all over the world that used to remove carbon dioxide from the air.
Humans contribute to the amount of carbon dioxide in the atmosphere through deforestation and the burning of fossil fuels. Burning any carbon releases carbon dioxide into the atmosphere. Trees remove carbon dioxide from the atmosphere through photosynthesis.
People are adding carbon dioxide to the atmosphere by burning fossil fuels. I believe
The carbon cycle moves carbon in and out of the atmosphere, the land, plants and animals, and the oceans. Carbon dioxide in the atmosphere is a greenhouse gas that keeps the planet warm. Too much carbon dioxide in the atmosphere, from humans adding it by burning fossil fuels, is causing an accelerated greenhouse effect, global warming.
Nature produces the vast bulk of carbon dioxide in the atmosphere. Rotting trees, and dead matter produce over 90% of the current levels of carbon dioxide. Man produces between 3 and 6 percent of all CO2 annually.
We are adding more and more carbon dioxide to the atmosphere. This is causing global warming and climate change.
- carbon dioxide is released in the atmosphere: - part of carbon dioxide in the atmosphere is absorbed by the biosphere - part of carbon dioxide in the atmosphere is absorbed by body of waters
From the animals around it breathing oxygen and converting it to carbon dioxide.
People are adding carbon dioxide to the atmosphere by burning fossil fuels. I believe
... the burning of fossil fuels, which is adding extra carbon dioxide to the greenhouse gases in the atmosphere.
we will all die :)
yes
The carbon cycle moves carbon in and out of the atmosphere, the land, plants and animals, and the oceans. Carbon dioxide in the atmosphere is a greenhouse gas that keeps the planet warm. Too much carbon dioxide in the atmosphere, from humans adding it by burning fossil fuels, is causing an accelerated greenhouse effect, global warming.
forests absorb the carbon dioxide and help to maintain balance
Nature produces the vast bulk of carbon dioxide in the atmosphere. Rotting trees, and dead matter produce over 90% of the current levels of carbon dioxide. Man produces between 3 and 6 percent of all CO2 annually.
It is important to worry about it, because carbon dioxide is a powerful greenhouse gas that is adding to the greenhouse effect in the atmosphere and contributing to global warming.
Venus has the thickest carbon dioxide atmosphere.
We are adding more and more carbon dioxide to the atmosphere. This is causing global warming and climate change.
Carbon dioxide.
high concentration of carbon dioxide