Answer:
A positive feedback has occurred, and the planet is warming.
Option (b) is true.
Step-by-step explanation:
When increased CO2 leads to an increase in temperature by promoting more CO2 release from the ocean, a positive feedback loop has occurred.
This means that the initial increase in CO2 has caused a chain reaction that is leading to even more CO2 being released into the atmosphere.
This positive feedback loop is one of the reasons why scientists are concerned about the effects of climate change.
The other answer choices are incorrect:
a) Cooling: Increased CO2 does not lead to cooling.
c) Stabilizing: The planet is not stabilizing. The positive feedback loop is causing the planet to warm even faster.
d) Experiencing extreme weather: Extreme weather is a symptom of climate change, but it is not the cause.
Thus,
Option (b) is true.