Seaweed as a Solution to Climate Change

What are some potential benefits of seaweed in fighting climate change?

• All of the above

• Providing feedstock for biofuels

• Absorbing carbon

• Reducing methane emissions

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What is the main goal of Running Tide's seaweed project in Iceland?

• To sink seaweed to the ocean floor

• To absorb carbon from the atmosphere

• To replace carbon-intensive materials

• To feed the world

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Why are some scientists and environmental groups cautioning against rushing ahead with seaweed-based carbon removal?

• It could cause environmental harm

• All of the above

• It could distract from cutting emissions

• The science is not settled

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What is the estimated amount of seaweed farms needed to sequester a tenth of a gigaton of carbon annually?

• 50,000 square kilometers

• 73,000 square kilometers

• 10,000 square kilometers

• 2,000 square kilometers

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What is one challenge to using seaweed as a climate solution?

• High costs of seaweed-based carbon removal

• Potential ecosystem disruption

• Uncertainty of large markets for seaweed products

• All of the above

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What is one potential alternative use for seaweed to mitigate climate change?

• Using it to produce biofuels

• Using it to feed livestock

• Sinking it to sequester carbon

• Using it to replace high-emissions foods

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What is the main concern regarding seaweed sinking ventures?

• Environmental impacts

• All of the above

• Social benefits

• Lack of evaluation

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What is one potential method to monitor carbon capture and environmental impacts of seaweed farming?

• Monitoring carbon credits

• Using frayed and broken tips of seaweed blades

• Sinking seaweed to the ocean floor

• Using holdfasts close to shore

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According to the article, what is the current outlook for a massive scale-up of seaweed climate benefits?

• Unknown

• Unrealistic

• Murky

• Promising

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What is the main factor influencing the choice of seaweed pathway?

• Effectiveness

• Cost

• Speed

• Environmental impact

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