Ocean Health and Environmental Challenges

The video discusses the role of microbes in the Pacific Ocean, highlighting the changes in microbial ecosystems and their impact on the environment. It covers harmful algal blooms and their link to climate change, as well as research conducted at Station ALOHA in Hawaii. The video emphasizes the importance of sustained ocean observation and the need for global action to protect marine ecosystems.

What is the primary theme that has emerged in the field of microbial oceanography?

• Stability

• Diversity

• Isolation

• Change

What are harmful algal blooms known to produce that can affect human health?

• Toxins

• Nutrients

• Carbon dioxide

• Oxygen

Which climatic oscillations are linked to the risk of harmful algal blooms?

• El Niño and Pacific Decadal Oscillation

• La Niña and Atlantic Multidecadal Oscillation

• Southern Annular Mode and North Atlantic Oscillation

• Indian Ocean Dipole and Arctic Oscillation

What is the Hawaiian Ocean Time-series primarily focused on studying?

• Oceanic currents

• Open ocean biology, chemistry, and physics

• Coastal erosion

• Marine mammals

What significant change in ocean chemistry has been observed at Station ALOHA?

• Increase in salinity

• Decline in pH

• Rise in oxygen levels

• Decrease in temperature

What percentage of the heat generated by greenhouse gas emissions is absorbed by the oceans?

• 30%

• 90%

• 70%

• 50%

Which of the following is NOT mentioned as an environmental challenge in the transcript?

• Sea-level rise

• Deforestation

• Overfishing

• Eutrophication

What is the speaker's belief regarding the observation of oceans and the planet?

• It is an optional task

• It is a financial burden

• It is a moral imperative

• It is a scientific curiosity

What analogy does the speaker use to describe the current rate of carbon dioxide emissions?

• Sailing a ship

• Building a skyscraper

• Running a marathon

• Eating like we're in our 20s

According to Jane Lubchenco, what is the status of the oceans?

• Too big to fail

• Too big to ignore

• Too small to matter

• Too big to fix