Question

Scientists have been observing increasing levels of carbon dioxide, methane, and other greenhouse gases in Earth's atmosphere. How are these increasing levels of greenhouse gases affecting Earth's climate?
A. They are a direct and indirect cause of global warming, but not other climate changes.
B. They are the direct cause of changes to precipitation patterns and storms, but not global warming.
C. They are the direct cause of changes to precipitation patterns and storms, which is causing global warming.
D. They are the direct cause of global warming, which is causing changes to precipitation patterns, storms, and other weather events.

Answer 1

Answer:

D. They are the direct cause of global warming, which is causing changes to precipitation patterns, storms, and other weather events.

Explanation:

Increased levels of greenhouse gases are causing global warming, but have no observed effect directly on precipitation and weather patterns.