If your question is really about oxygen then it is false. And oxygen is not increasing in the atmosphere. If you are talking about carbon dioxide, a gas that IS increasing in the atmosphere, then it is true. Carbon dioxide is causing the speeding up of global warming.
The enhanced greenhouse effect in our atmosphere is believed to be causing global warming.
The increase of carbon dioxide in the atmosphere is causing global warming and climate change.
Deforestation, the cutting down of forests, means that the trees no longer remove carbon dioxide from the air, through photosynthesis. More carbon dioxide, a greenhouse gas, in the atmosphere means increased warming. This warming is causing the climate to change.
Because it is all but certain that this increase will be extremely detrimental to the Earth's Future. Additional greenhouse gases are causing an enhanced (or accelerated) greenhouse effect which is causing global warming.
We are adding more and more carbon dioxide to the atmosphere. This is causing global warming and climate change.
An enhanced (or accelerated) greenhouse effect which is causing global warming.
Increased levels of greenhouse gases in the atmosphere are causing global warming.
Radiation from the sun warms the earth. Increasing amounts of greenhouse gases prevent this heat from reflecting back out into space, causing a global warming of the atmosphere.
methane and carbon dioxide
methane and carbon dioxide
It is not dangerous to breathe the amounts in the atmosphere, but the small percentage is causing an enhanced (or accelerated) greenhouse effect which is causing global warming. So it is certainly a hazard to humans.
No, in fact, the opposite will happen. Increased carbon dioxide (CO2) levels in the atmosphere are producing an enhanced (or accelerated) greenhouse effect which is causing global warming.
Burning fossil fuels has released large amounts of carbon into the atmosphere. As a result, the carbon dioxide in the atmosphere has increased. Some claim this results in global warming.
Burning fossil fuels has released large amounts of carbon into the atmosphere. As a result, the carbon dioxide in the atmosphere has increased. Some claim this results in global warming.
The increase of greenhouse gases in the atmosphere, particularly carbon dioxide, is causing global warming.
The main global problems of clearing forests and increased gas emissions are global warming and acid rain. The clearing of forests means additional carbon dioxide in the atmosphere, causing global warming. Increased gas emissions also contribute to global warming and acid rain.
The enhanced greenhouse effect in our atmosphere is believed to be causing global warming.