Ocean Acidification -- Changing Planet

The video explores the rich marine life in Antarctica and the challenges posed by ocean acidification due to increased CO2 levels. It highlights the vulnerability of marine ecosystems, particularly in polar regions, and the impact on species like sea urchins. Research at UC Santa Barbara shows how acidification affects marine growth and reproduction. The economic implications for the seafood industry, especially in California, are discussed, with collaborative efforts to address these issues. The video concludes with concerns about the ability of marine life to adapt to rapid environmental changes.

What unique feature allows marine life to thrive in the Southern Ocean despite its extreme cold?

• Adaptation to cold temperatures

• High levels of sunlight

• The presence of warm underwater currents

• Abundant food supply from land

What is the primary cause of ocean acidification?

• Increased volcanic activity

• Deforestation

• Burning of fossil fuels

• Natural oceanic processes

How has the pH of ocean surface waters changed in the last 150 years?

• Fluctuated significantly

• Increased by 0.1 pH unit

• Decreased by 0.1 pH unit

• Remained constant

What effect does increased ocean acidity have on marine animals like corals and oysters?

• It makes it harder for them to build shells

• It makes it easier for them to reproduce

• It has no effect on them

• It strengthens their shells

What economic impact does ocean acidification have on the sea urchin industry?

• Higher prices for sea urchin products

• Expansion of sea urchin habitats

• Increased demand for sea urchins

• Potential job losses for divers

What collaborative efforts are being made to address ocean acidification?

• Building artificial reefs

• Reducing seafood consumption

• Standardizing water measurements

• Introducing new marine species

What challenge do Antarctic sea urchins face due to climate change?

• Finding new food sources

• Migrating to warmer waters

• Adapting to warmer and more acidic conditions

• Competing with new species