Sea levels could rise by over 5 meters by the year 3000 if current

The video discusses the potential rise in sea levels by the year 3000 if current warming trends continue, with projections ranging from 1.5 to 5.4 meters. It highlights the impact of greenhouse gas emissions on sea levels and the potential collapse of the West Antarctic Ice Sheet as a major contributing factor. The process involves ocean heat causing ice loss, leading to accelerated glacier movement and further sea level rise. Historical data shows sea levels have already risen significantly since 1880, with the rate of increase doubling in recent years.

What is the projected sea level rise by the year 3000 if current warming trends continue?

• 5.5 to 10 meters

• 1.5 to 5.4 meters

• 10 to 15 meters

• 0.5 to 1.5 meters

How could reducing emissions impact the projected sea level rise by 3000?

• It could stop the rise completely

• It would have no impact

• It could decrease the rise to 0.13 to 2.32 meters

• It could increase the rise to 10 meters

What is the main mechanism behind the worst-case scenario of sea level rise?

• Expansion of ocean water

• Increased rainfall

• Collapse of the West Antarctic Ice Sheet

• Melting of Arctic sea ice

What role do ocean currents play in the potential collapse of the West Antarctic Ice Sheet?

• They have no effect

• They cool the ice sheet

• They deliver warm water to the ice sheet

• They stabilize the ice sheet

How much have sea levels risen since 1880 according to the US National Oceanic and Atmospheric Administration?

• 25 to 30 centimeters

• 10 to 15 centimeters

• 15 to 20 centimeters

• 21 to 24 centimeters