Consequences of Climate Change and Biodiversity

The video explores the history of mass extinctions, highlighting the mysterious causes of past events and the potential for a sixth extinction driven by human activity. It discusses the significant impact humans have had on the environment, including habitat destruction, species eradication, and climate change. The video questions whether humanity's dominance will lead to its downfall and considers the possibility of using technology to reverse environmental damage.

What percentage of living things disappeared along with the dinosaurs 65 million years ago?

• 100%

• 75%

• 50%

• 90%

How long have humans been significantly impacting the Earth?

• 200,000 years

• 100,000 years

• 500,000 years

• 50,000 years

What percentage of the planet's net primary production is used by humans?

• 40%

• 60%

• 25%

• 10%

What is the estimated number of species on Earth?

• 1.5 million

• 5.5 million

• 8.7 million

• 3.2 million

How much faster are species being lost due to human activities compared to the natural rate?

• 5,000 times

• 1,000 times

• 100 times

• 10,000 times

What are some potential consequences of climate change mentioned in the video?

• More forests, less desertification, stable weather patterns

• Rising seas, acid rain, soaring temperatures

• Increased biodiversity, stable climates, more rainfall

• Decreased pollution, cooler temperatures, stable sea levels

What is a potential cause of the downfall of the dinosaurs that might also threaten humans?

• Asteroid impact

• Disease

• Volcanic eruptions

• Climate change

What is the main concern about human reliance on fossil fuels?

• They are abundant

• They are renewable

• They may alter the climate catastrophically

• They are inexpensive

What is the key to the success of all species according to the video?

• Political stability

• Economic growth

• Technological advancement

• Interaction with the world

What is the main question raised about technology in the video?

• Can it eliminate all diseases?

• Can it increase human lifespan?

• Can it reverse the damage to Earth's ecosystems?

• Can it create new species?