Climate Change

Which of the following conditions are likely outcomes of climate change?

All of the above.

This gas is a major greenhouse gas that can result from the burning of fossil fuels.

Carbon dioxide (CO2)

What sources of data would help determine climatic conditions in Colorado 100 million years ago?

Plant fossils

Which of the following statements is true about past climates throughout Earth's history?

The climate has continually changed throughout Earth's history.

Which of the following statements is true about greenhouse gases?

They are transparent to visible and ultraviolet radiation, but absorb infrared radiation.

Aerosols probably will not offset warming from greenhouses gases because ____

aerosols are removed by precipitation

Proxy data ____

are climate data determined from sources such as tree rings and ice cores.

Glaciers and sea ice throughout the world ______

are melting, indicating the climate is warming.

Foraminifera shells, which can be used to determine past seawater temperatures, can be recovered from ____

deep-sea sediments

Carbon dioxide concentrations in the atmosphere have been _____

increasing since pre-industrial times.

Widely-spaced tree rings _____

indicate fast growth resulting from favorable climate conditions.

The nests of these animals, which can be used for many generations, can contain seeds and other indicators of past climates.

packrats

The study and reconstruction of past climates throughout Earth's history is called _____.

paleoclimatology

Nearly 90 percent of our energy comes from _____

the burning of fossils fuels and biomass.

Dendrochronology is the study of ______

tree rings