Consequences of Global Warming

The video discusses the potential impacts of a 1°C increase in global temperature, including ice-free Arctic conditions, flooding in the Bay of Bengal, and droughts in the western US. It highlights the risk of new deserts forming in the US and the unprecedented pace of current climate change. NASA scientist James Hansen's research on past climates underscores the dangers of rapid greenhouse gas emissions.

What is one of the consequences of a one-degree increase in global temperature?

• The Northwest Passage becomes accessible to ships.

• The Arctic remains ice-covered all year.

• Hurricanes stop occurring in the South Atlantic.

• Droughts decrease in the western US.

What happens to the Arctic if the world warms by one degree?

• It experiences no change.

• It is ice-free for half the year.

• It becomes colder.

• It remains ice-covered all year.

What is the potential impact on the Bay of Bengal with a one-degree temperature rise?

• Increase in fish population.

• Improved agricultural conditions.

• Flooding of tens of thousands of homes.

• Decrease in sea levels.

What is a potential result of additional warming in the western US?

• Increase in crop production.

• Decrease in desertification.

• Development of new hyperarid areas.

• Emergence of new forests.

How has the pace of climate change today been described?

• Easily manageable.

• Slower than in the past.

• Similar to historical fluctuations.

• Unprecedented in speed.

What did scientists initially believe about the impact of one or two degrees of warming?

• It would reverse climate change.

• It would have no impact.

• It would be manageable.

• It would be catastrophic.

Who was one of the first scientists to warn about global warming?

• Marie Curie

• Isaac Newton

• James Hansen

• Albert Einstein

What is the current threat level of global warming according to James Hansen?

• It is no longer a concern.

• It has escalated.

• It remains the same.

• It has decreased over time.

What is the significance of studying past climates according to James Hansen?

• It provides insight into the dangers of global warming.

• It suggests that human activity has no impact.

• It shows that current changes are minor.

• It proves that climate change is a myth.

How does the current introduction of greenhouse gases compare to the past?

• It is slower and less impactful.

• It is an order of magnitude larger and rapid.

• It is similar to historical levels.

• It has no significant effect.