Rising Sea Levels -- Changing Planet

The video discusses the threat of rising sea levels due to climate change, affecting coastal populations and ecosystems. It explains the causes, including ocean warming and ice melt, and highlights research efforts to predict future changes. The video emphasizes the need for adaptation and planning to mitigate impacts.

What percentage of the world's population lives within 60 miles of the coast?

• 80%

• 60%

• 90%

• 30%

What are the two main causes of rising sea levels?

• Deforestation and urbanization

• Warming climate and melting ice sheets

• Increased rainfall and river flow

• Volcanic activity and earthquakes

How do marine ice sheets differ from other ice sheets?

• They are smaller in size

• They are found only in the Arctic

• They rest on the ocean floor and can melt from below

• They are unaffected by ocean temperatures

What is the primary concern regarding warm ocean currents and ice sheets?

• They may cause ice sheets to grow

• They will decrease ocean salinity

• They could lead to more frequent hurricanes

• They might increase the melting of ice sheets

Since 1993, at what average rate have global sea levels been rising?

• 10 millimeters per year

• 1 millimeter per year

• 3 millimeters per year

• 5 millimeters per year

What method do scientists use to study historical sea levels?

• Carbon dating

• Tree ring analysis

• Sediment core analysis

• Satellite imagery

Why is it important for society to adapt to changing coastlines?

• To prepare for future changes and challenges

• To stop climate change entirely

• To maintain current sea levels

• To prevent all natural disasters