Exam 19: Climate Disruption and Ozone Depletion

Figure 19-2 Use the Figure above to answer the following question(s). -When the temperature decreased 120,000 years ago, what happened to the carbon dioxide concentration?

Scientists studying climate change estimate the average global sea level rise by the year 2100 may be as much as _____ or higher.

Walmart is saving $12 million a year by using energy-efficient LED bulbs in its refrigeration units.

Nitrous oxide (N₂0) levels are rising. Each nitrous oxide molecule has how much stronger a warming potential than does a molecule of carbon dioxide?

The tipping point for atmospheric concentrations of carbon is considered 450 ppm.

Current levels of climate disruption account for the premature deaths of 300,000 people each year.

Climate change models predict a decline in agricultural productivity in ____________________ and ____________________ regions.

The United States, China, and Russia─three of the world's major emitters─agreed in 2001 to participate in a cap-and-trade program to slow global warming.

Chemicals capable of destroying ozone include all of the following, except

NASA climate scientist James Hansen predicts we need to bring CO₂ levels down to the level we had in 1990 in order to maintain a climate similar to what we have had over the last 10,000 years. What is that 1990 CO₂ level?

Cataracts and skin cancers are serious problems resulting from ozone depletion, along with another serious threat, the UV radiation destroying ____________________.

Over the past 900,000 years the earth's atmosphere has been remarkably steady, not undergoing cycles of warming and cooling.

If all of the ozone-depleting substances were banned tomorrow, it would take about ____ years for earth to recover to pre-1950 levels.

Bill Gates, co-founder of Microsoft, is on record saying that climate change is the most important challenge we face.

Some U.S.states have plans on how to adapt to rising sea levels, as have some U.S.cities.

Use the Figure above to answer the following question(s). -When has there been the most consistent temperature rise since the 1200s?

The oceans are the warmest they have been in the last 130 years.

Environmental economists agree that the most critical goal is to put a price on carbon emissions to get all emitters to pay all of the estimated harmful environmental and health costs of their carbon emissions.

Carbon dioxide concentrations in the atmosphere are higher than they have been in the last ____________________ years.

In 1995, ____________________ and ____________________ received the Nobel Prize in chemistry for their work indicating that CFCs were lowering the average concentration of ozone in the stratosphere.