Oceans are absorbing more heat than previously estimated

Recent research suggests oceans have absorbed 60% more heat since the 1990s than previously thought. This conclusion was reached by analyzing atmospheric oxygen and carbon dioxide levels, rather than direct ocean measurements. As oceans warm, their capacity to absorb these gases decreases, leaving more in the atmosphere. This method allowed researchers to estimate the heat absorbed by oceans from 1991 to 2016. The warming oceans could lead to faster sea level rise, coral reef die-offs, and more intense storms.

What percentage increase in ocean heat absorption since the 1990s is suggested by recent estimates?

• 120%

• 90%

• 60%

• 30%

Which method did researchers use to estimate the heat absorbed by oceans?

• Atmospheric gas level analysis

• Satellite imagery

• Direct ocean temperature measurements

• Seafloor sensors

What happens to the ocean's ability to absorb gases as it warms?

• It increases

• It remains the same

• It decreases

• It fluctuates

Which of the following is a potential consequence of warmer oceans?

• Stable ocean currents

• Increased coral reef growth

• Stronger storms

• Decreased sea levels

How might warmer oceans affect sea ice?

• Increase in sea ice formation

• No effect on sea ice

• Stabilization of sea ice levels

• Accelerated melting of sea ice