You will see that they track each other through time. When these levels were high, climate was usually warm. Bubbles of ancient air trapped in glacial ice. We do not know which changes first, the level of greenhouse gases or temperature. But there is no doubt that they rise and fall together.
Higher temperatures go hand in hand with higher greenhouse gas levels.
This supports predictions that in the future Earth's climate will become warmer as greenhouse gases continue to rise in the atmosphere. In 1958 scientists on Hawaii's Mauna Loa volcano began to record the daily level of carbon dioxide in the atmosphere. The concentration of this gas is now more than 15 percent higher. Design and construction by Knauer Communications .