An increase in carbon dioxide in the atmosphere results in an increased amount of carbon dioxide in the atmosphere. A decrease usually results in a decreased concentration of carbon dioxide in the atmosphere
An enhanced (or accelerated) greenhouse effect which is causing global warming.
carbon dioxide
Carbon dioxide and methane are the two gases that have been added to Earth's atmosphere in large amounts and are believed to have increased global warming by absorbing infrared radiation.
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.
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.
carbon dioxide
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.
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.
true
Mars' atmosphere is mostly composed of carbon dioxide (95.3%), with smaller amounts of nitrogen (2.7%) and argon (1.6%). There are also trace amounts of oxygen and water vapor in the atmosphere.
The enhanced, or accelerated greenhouse effect, is the increased heat in the atmosphere. It is caused largely by humans burning fossil fuels and cutting down forests. Both these activities Lead to more carbon dioxide (a greenhouse gas) in the atmosphere.
The increased concentrations of carbon dioxide in the atmosphere lead to ocean acidification, which can harm marine life and disrupt ecosystems.