Understanding Climate Change and Its Impacts

The video discusses the global environmental changes driven by human activities, highlighting the shift towards sustainable practices like hybrid taxis and fluorescent bulbs. It emphasizes the complexity of assessing Earth's health due to diverse climates and economic conditions. The video explains the historical increase in greenhouse gases and the scientific consensus on climate change, urging action to mitigate its effects. It concludes with the impact of greenhouse gases on global temperatures, predicting a significant rise if current emission rates continue.

Which city is mentioned as adopting hybrid taxis as part of eco-friendly initiatives?

• Paris

• Tokyo

• New York

• London

What is the main challenge in assessing the Earth's health?

• Lack of technology

• Varying climates and economic circumstances

• Political disagreements

• Insufficient data

Which organization is NOT mentioned as contributing to the data collection for ecological issues?

• World Health Organization

• Top research centers and universities

• United Nations

• The Nature Conservancy

What gives Earth its blue hue from space?

• Atmospheric gases

• Ice caps

• Oceans

• Forests

How long have greenhouse gases been increasing significantly?

• 500 years

• 50 years

• 100 years

• 250 years

Who is Mike Fay?

• A climate scientist

• A National Geographic Explorer

• A UN representative

• A politician

What was the significance of the 2007 report by the Intergovernmental Panel on Climate Change?

• It confirmed human-driven climate change

• It denied climate change

• It focused on economic impacts

• It proposed new climate policies

What is the role of greenhouse gases in Earth's atmosphere?

• They cool the planet

• They trap solar heat

• They provide oxygen

• They block sunlight

By how much has the Earth already warmed due to increased greenhouse gases?

• 1.2°C

• 2.0°C

• 0.5°C

• 0.8°C

What is the potential temperature increase by the next century if CO2 emissions continue at the current rate?

• 4 to 6°C

• 3 to 5°C

• 2 to 4°C

• 1 to 2°C