Understanding the Impact of Global Warming on Hurricane Intensity

The video discusses the early occurrence of Hurricane Dennis and how global warming is expected to intensify hurricanes by increasing ocean temperatures. A study led by Tom Knutson predicts that hurricane strength will rise within 80 years, with potential increases in wind speed, rainfall, and storm surge. The study does not address changes in hurricane frequency, which is a topic for future research.

What unusual event occurred with Hurricane Dennis?

• It arrived later than usual.

• It happened earlier than usual.

• It was weaker than expected.

• It did not make landfall.

How do hurricanes primarily gain their energy?

• From cold ocean currents

• From land heat

• From warm ocean water

• From high-altitude winds

What is the expected change in average hurricane strength due to global warming?

• Remain the same

• Increase by 1/2 a category

• Decrease by 1/2 a category

• Double in strength

What is one of the predicted changes in hurricane characteristics within 80 years?

• Decrease in wind speed by 20 kilometres an hour

• Increase in hurricane frequency

• Increase in storm surge by 1 metre

• Decrease in rainfall by 100 millimetres

What aspect of hurricanes does the study not address?

• Hurricane intensity

• Hurricane frequency

• Hurricane rainfall

• Hurricane wind speed