Is human activity warming the Earth or do recent signs of climate change signal natural variations?
In this article, Patrick L.Barry from NASA discusses the vexing ambiguities of our planet’s complex and unwieldy climate. Newspaper headlines trumpet record-breaking temperatures, dwindling sea ice, and retreating glaciers around the world. Concentrations of atmospheric carbon dioxide, one of the greenhouse gases responsible for scalding temperatures on Venus and at least 33 degrees C of normal warming here on Earth, are on the rise. Our planet seems destined for a hot future!
Related Questions
- How do we know the warming is a result of the buildup of Greenhouse Gases in the atmosphere from human activity, and not the result of natural climate variability or some other natural cause?
- How do we know that recent climate change is attributable to human activities rather than natural causes?
- Is human activity warming the Earth or do recent signs of climate change signal natural variations?
