Question

1. Name two greenhouse gases.
2. Describe two sources of these gases.
3. Explain how scientists have used evidence to link global warming to carbon dioxide.

Answer 1

Answer:

Carbon Dioxide: coal, oil

Explanation:

Methane: landfills, oil

Using the scientific method, scientists have shown that humans are extremely likely the dominant cause of today’s climate change. The story goes back to the late 1800s, but in 1958, for example, Charles Keeling of the Mauna Loa Observatory in Waimea, Hawaii, started taking meticulous measurements of carbon dioxide (CO2) in the atmosphere, showing the first significant evidence of rapidly rising CO2 levels and producing the Keeling Curve climate scientists know today.