Seagrass: The Unlikely Champion of Carbon Sequestration

The video introduces seagrass as a powerful yet underappreciated carbon-removal technology. It covers the unique adaptations of seagrass, its role in carbon sequestration, and the challenges it faces due to human activities. Innovative conservation efforts, including partnerships with marine animals, are highlighted. The video concludes with success stories of seagrass restoration and a hopeful outlook for ocean health.

What percentage of the seafloor do seagrasses occupy, and what fraction of carbon do they sequester annually?

• 5% of the seafloor, one-fifth of carbon

• 10% of the seafloor, one-fourth of carbon

• 1% of the seafloor, half of carbon

• 0.1% of the seafloor, one-third of carbon

How many species of flowering plants have adapted to live in the ocean?

• 17 species

• 300 species

• 50 species

• 100 species

What is the size of the largest seagrass clone found in the Mediterranean?

• 5 kilometers

• 15 kilometers

• 25 kilometers

• 10 kilometers

How does the seagrass canopy contribute to carbon sequestration?

• By dissipating energy and filtering particles

• By reducing water temperature

• By increasing oxygen levels

• By attracting more marine life

What major event in the 1930s significantly impacted seagrass populations?

• A major oil spill

• A rise in sea levels

• An increase in sea temperature

• A disease outbreak

Which marine animal is used to help discover new seagrass meadows in the Bahamas?

• Whales

• Sea turtles

• Tiger sharks

• Dolphins

What is the primary goal of the policies being developed for seagrass protection?

• To improve water quality and recover seagrasses

• To increase tourism

• To build more coastal infrastructure

• To promote fishing activities

What innovative use has been found for seagrass seeds?

• As a natural fertilizer

• As a building material

• As a biofuel

• As a marine rice for human consumption

What is the potential benefit of seagrass meadows in terms of climate change?

• They can increase global temperatures

• They can stabilize the climate by sequestering carbon

• They can increase ocean acidity

• They can decrease ocean salinity

What is the vision for ocean life by 2050 as mentioned in the transcript?

• To decrease the number of marine species

• To reduce marine biodiversity

• To rebuild the abundance of life in the ocean

• To increase ocean pollution