Understanding Global Warming

The Earth's climate has fluctuated for millions of years, but recent human activities have accelerated global warming. The burning of fossil fuels releases greenhouse gases, intensifying the greenhouse effect and causing temperatures to rise. Evidence includes record warm years and shrinking Arctic ice. Future predictions suggest rising sea levels and altered weather patterns. Mitigation efforts focus on reducing emissions and energy consumption.

What has been the primary cause of the rapid temperature increase in the last century?

• Natural climate cycles

• Solar flares

• Human activities

• Volcanic eruptions

Which event marked the beginning of significant fossil fuel consumption?

• The Renaissance

• The Information Age

• The Industrial Revolution

• The Agricultural Revolution

What is the primary function of greenhouse gases in the atmosphere?

• To trap heat and warm the Earth

• To block sunlight

• To cool the Earth

• To absorb water vapor

Which gas is primarily responsible for the intensified greenhouse effect?

• Carbon dioxide

• Nitrogen

• Helium

• Oxygen

Which year was reported as the warmest in measured history?

• 1998

• 2010

• 2000

• 2005

What has been the trend in Arctic sea ice over the last 30 years?

• It has remained stable

• It has increased by 10%

• It has declined by 10%

• It has doubled

What is one potential consequence of rising global temperatures?

• Decreased sea levels

• More frequent hurricanes

• Increased polar bear populations

• More stable weather patterns

What is a suggested action to help reduce the impact of global warming?

• Increase fossil fuel consumption

• Drive more miles each week

• Switch to compact fluorescent light bulbs

• Use more plastic products

What is the predicted temperature increase by the end of the century?

• 10 to 20°F

• 2 to 10°F

• 1 to 2°F

• 0.5 to 1°F

What is a potential impact of climate change on species?

• Rapid evolution

• More stable ecosystems

• Species extinction

• Increased biodiversity