Understanding Glacial Changes and Global Warming

The video discusses the current state of Earth's glaciers, which cover about 10% of the surface but are rapidly melting due to global warming. Scientists measure glacier melt in Iceland and observe similar effects in the Swiss Alps, where melting glaciers destabilize mountains. Historical climate changes are noted, but current warming is linked to increased CO2 levels. The video emphasizes the urgency of addressing global warming before it's too late.

What percentage of Earth's surface is currently covered by ice?

• 10%

• 5%

• 15%

• 20%

What recent phenomenon is threatening the glaciated parts of the planet?

• Deforestation

• Global warming

• Urbanization

• Overfishing

How do scientists measure the melting of glaciers?

• By counting icebergs

• By using wires to measure ice melt

• By measuring water levels

• By observing color changes

What is the expected time for glaciers in Iceland to disappear under current conditions?

• 400 years

• 200 years

• 300 years

• 100 years

What role does ice play in the Swiss Alps according to Professor Adrien Fifner?

• It acts as a glue holding mountains together

• It supports local wildlife

• It is a source of minerals

• It provides water for rivers

What historical period experienced a similar warm spell to today?

• Industrial Revolution

• Roman times

• Medieval times

• Ice Age

What is the main cause of the current global warming according to the transcript?

• Solar flares

• Natural fluctuations

• Volcanic activity

• Increased CO2 in the atmosphere

At what rate are glaciers currently melting?

• Half a meter per year

• One meter per year

• Two meters per year

• Three meters per year

What is the potential consequence of not addressing global warming in time?

• Irreversible glacier loss

• Increased rainfall

• Decreased ocean levels

• More frequent earthquakes

What action is suggested to combat the effects of global warming?

• Wait for natural cooling

• Increase CO2 emissions

• Act immediately

• Focus on other environmental issues