Five Steps to a Carbon Neutral U.S.: Columbia University’s Sachs

The video discusses the urgent need to address climate change by transitioning to zero-carbon energy sources. It outlines a plan to decarbonize the energy system, focusing on renewable energy like wind, solar, and hydro. The video also covers sector-specific strategies for buildings, transport, and industry, emphasizing the role of electric vehicles and retrofitting buildings. Challenges such as existing infrastructure and the need for government intervention are highlighted. The video concludes with a call for global cooperation and leadership in climate action.

What is the main reason for the urgency in addressing climate change according to the introduction?

• The increase in global temperatures

• The financial damages from climate-related events

• The rise in sea levels

• The depletion of natural resources

Which energy sources are emphasized as part of the transition to zero-carbon energy?

• Nuclear and coal

• Wind and solar

• Biomass and biofuels

• Natural gas and oil

What is identified as the main obstacle to transitioning to renewable energy?

• Lack of technology

• High costs

• Fossil fuel industry interests

• Public opposition

What is the proposed timeline for all new light-duty vehicle sales to be electric?

• By 2040

• By 2050

• By 2025

• By 2030

What is a major challenge in transitioning older buildings to zero-carbon solutions?

• Lack of technology

• High retrofitting costs

• Public resistance

• Insufficient workforce

Which region is currently taking a leadership role in going green according to the final section?

• United States

• Europe

• Africa

• Asia

What is the expected contribution of U.S. states towards carbon neutrality without federal support?

• Complete transition

• Halfway progress

• Minimal impact

• No progress