Post-Human World: Environmental Changes

The video explores the hypothetical scenario of human disappearance and its impact on Earth. Initially, infrastructure fails, leading to fires and darkness. Over decades, urban areas decay, and nature reclaims cities. Biodiversity flourishes, and climate gradually recovers. Human artifacts persist for millions of years, leaving a lasting legacy. The video encourages reflection on humanity's impact and the resilience of nature.

What immediate effect would the disappearance of humans have on oil refineries?

• They would become more efficient.

• They would produce more oil.

• They would malfunction and cause fires.

• They would stop working completely.

What happens to underground rail systems shortly after humans disappear?

• They continue to operate automatically.

• They flood due to abandoned drainage pumps.

• They are taken over by wildlife.

• They become more efficient.

How do urban areas change within 20 years of human disappearance?

• They become deserts.

• They are overtaken by weeds and tree roots.

• They remain unchanged.

• They are covered in ice.

What happens to skyscrapers within 200 winters after humans disappear?

• They are converted into forests.

• They buckle and collapse.

• They are preserved as historical sites.

• They become tourist attractions.

Which plant species overgrows the banks of the Thames River in a post-human world?

• Poisonous giant hogweeds

• Water hyacinth

• Oak trees

• Chinese Ailanthus trees

How does reduced light pollution benefit birds?

• It makes them more visible to predators.

• It disrupts their sleep patterns.

• It saves over a billion birds by reducing migration disruptions.

• It causes them to migrate earlier.

Which animals are likely to survive without humans?

• Resourceful pigs, dogs, and feral housecats

• Most domesticated animals

• All wild animals

• None of the animals

How long does it take for Earth's climate to remove the last traces of lead from the soil?

• 100,000 years

• 5,000 years

• 10,000 years

• 35,000 years

What is the estimated duration for CO2 levels to return to pre-human levels?

• 500 years

• 1,000 years

• 65,000 years

• 10,000 years

Which human structure is expected to last for 7.2 million years?

• Mt. Rushmore

• The Great Wall of China

• The Statue of Liberty

• The Eiffel Tower