IPCC: The Intergovernmental Panel on Climate Change
Measuring the Climate Effects of Volcanic Eruptions
Methane is an important greenhouse gas. Methane molecules have four hydrogen atoms and one carbon atom.
Mount Tambora and the Year Without a Summer
Ocean Upwelling
Resource Type: Information
Pollen: More Than Just an Allergen
Climate change research involves numerous disciplines of Earth system science as well as technology, engineering, and programming. To have a complete picture of how the climate changes we rely on direct measurements, proxy data, and computer modeling.
Resource Type: Information
In the right amounts, greenhouse gases, like carbon dioxide, methane, nitrous oxide, are helpful, rather than harmful, because they can help regulate the temperature of the planet. The problem is that human activity has led to a dramatic increase of greenhouse gases in the atmosphere.
Teleconnections: Changes in Weather Linked Together
Resource Type: Information
Trees contain some of nature's most accurate evidence of the past. Their growth layers, appearing as rings in the cross section of the tree trunk, record evidence of disastrous floods, insect attacks, lightning strikes, and even earthquakes that occurred during the lifespan of the tree. They also hold excellent records of climate.