Climate Change and Energy Perspectives

The video discusses the undeniable human impact on climate change, with insights from NASA scientist Ryan Cramer and public health expert Dan Goldberg. It highlights the increase in greenhouse gases since the industrial revolution, the role of power plants, and the rising sea levels affecting D.C. landmarks. The video also covers air pollution from fuel combustion and the slow but promising transition to renewable energy sources like solar and wind.

What role do humans play in climate change according to NASA's Ryan Cramer?

• Humans help reduce climate change.

• Humans have no impact on climate change.

• Humans are the primary cause of climate change.

• Humans only slightly affect climate change.

How do greenhouse gases contribute to global warming?

• They trap energy from escaping into space.

• They increase the Earth's albedo.

• They cool down the Earth's surface.

• They allow more sunlight to enter the atmosphere.

Which sector is responsible for the most greenhouse gas emissions?

• Power plants

• Transportation

• Residential

• Agriculture

What is the impact of rising tidal rivers in D.C.?

• They threaten historic landmarks.

• They reduce flooding risks.

• They have no significant impact.

• They improve water quality.

What is the potential future scenario for historic landmarks in D.C.?

• They will be preserved by natural barriers.

• They will be relocated.

• They will be underwater without action.

• They will remain unaffected.

What are nitrogen oxides, according to Dan Goldberg?

• Beneficial to human health

• Harmless gases

• Inert gases

• Toxic to human health

What is the current trend in energy efficiency?

• Energy efficiency is decreasing.

• Energy efficiency is improving slowly.

• Energy efficiency is stagnant.

• Energy efficiency is rapidly improving.

How do solar and wind energy compare to fossil fuels today?

• They are not yet viable alternatives.

• They are less efficient than fossil fuels.

• They are more expensive than fossil fuels.

• They are price competitive with fossil fuels.

What is Dan Goldberg's outlook on the transition to cleaner fuels?

• Pessimistic about any progress

• Indifferent to the transition

• Believes it will take over a century

• Optimistic with concerted efforts

What is the main cause of climate change according to the experts?

• Greenhouse gas emissions from human activities

• Volcanic eruptions

• Solar flares

• Natural climate cycles