Exam 15: Air Pollution, Climate Change and Ozone Depletion

The estimated tipping point of carbon dioxide levels in the atmosphere is ____________________ ppm.

The EPA estimates that running a typical gas-powered riding lawn mower for an hour creates as much air pollution as driving 34 cars for an hour.

Satellite data and other measurements and models indicate that 75-85% of the observed ozone losses in the stratosphere since 1976 resulted from people releasing ____ and other ozone-depleting chemicals into the troposphere beginning in the 1950s.

____________________ are synthetic compounds that have been widely used as refrigerants and in spray propellants and foam blowing.

Nitrogen oxides can combine with water in the atmosphere and form nitric acid, one of the components of harmful acid deposition.

While climate change is a serious threat to natural ecosystems, it is not a threat to human health.

The Paris agreement specifies that wealthier countries must help poorer countries meet emissions targets.

What is an advantage to placing taxes and fees on carbon and energy usage?

What is likely the most effective way to reduce acid deposition?

The latest scientific research indicates that the net global effect of ____ cover changes is likely to increase atmospheric warming.

If the climate change tipping point is reached in the next few decades, it is expected that the ____________________ice sheet will collapse and melt.

The power of prevention was made clear by the 99% drop in atmospheric lead emissions after lead in gasoline was banned in 1976.

To measure concentrations of carbon dioxide over time, scientists use ____.

Explain why some experts consider indoor air pollution to be one of the most serious air pollution problems. In your answer, utilize some facts about indoor air pollution.

Eating less or no meat could help reduce ____________________ emissions.

In cities, urban ____________________ worsen pollution because they block the movement of wind and make it harder for pollutants to disperse.

Despite increases in gross domestic product, vehicle miles traveled, and energy use, emissions of the 6 major air pollutants have decreased in the United States between 1980 and 2015.

Some research suggests that outdoor air pollution, mostly in the form of fine-particle pollution, contributes to the deaths of approximately 200,000 Americans every year.

Where are pollution levels up to 18 times higher inside than they are outside in traffic-clogged urban settings?

The reality of the greenhouse effect is accepted by the vast majority of scientists.