Mount Tambora and the Year Without a Summer
Ocean Upwelling
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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.
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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
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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.
With visualizations we can see the entire planet from all angles at once. We can see the invisible – such as water vapor in the atmosphere and the way air flows around the world.
Factors that have the power to change global climate can be natural, like volcanic eruptions and changes in solar energy, or caused by humans, like the addition of greenhouse gases to the atmosphere.
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Over the past century, the global average temperature has warmed. Learn the science of why this has happened, and what the future holds.
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