Exam 28: Global Climate Change

A mean daily increase of 1°C would shift the North American corn belt

General circulation models consistently predict an increase in both average global ________ and average global precipitation.

In response to elevated atmospheric carbon dioxide, primary productivity is more likely to increase in seasonally dry environments than in seasonally moist environments.

The process of ________ controls uptake of carbon dioxide from the atmosphere into the oceans.

Discuss the roles of terrestrial and oceanic ecosystems in absorbing carbon dioxide.

Which of the following biomes is most likely to increase its primary productivity in response to an increase in atmospheric carbon dioxide?

Greenhouse gases existed naturally in the atmosphere before the industrial revolution.

Albedo, an index of the ability of a surface to reflect solar radiation back to space, is relatively high for vegetation and low for ________.

A major source of aerosols resulting from human activities is sulfates and soot from the burning of ________ fuels.

Decomposition proceeds faster under warm and ________ conditions.

Is there an argument for studying ecology from a global perspective? If so, what would be the challenges?

The albedo of vegetation is higher than it is for snow and ice.

Several greenhouse gases are more effective at trapping heat than carbon dioxide.

Deforestation is a major cause of the recent rise in concentrations of the atmospheric gas ________.

Mosquitoes will die at temperatures ________ or humidity ________.

Humans are causing the first instances of significant climate change in Earth's history.

________ levels were about 100 metres lower during the last glacial maximum than they are today, and are expected to rise higher in the future as a consequence of global warming.

Which of the following is most likely to occur as a consequence of global climate change?

The absorption of thermal (long-wave)radiation emitted by the Earth's surface and atmosphere by naturally occurring chemical compounds in the atmosphere is a phenomenon referred to as the ________ effect.

Warm and humid conditions are challenging for human beings and can reach past our tolerance range. In 1936, the highest death toll due to these conditions resulted in ________ deaths in Canada.