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Unhealthy Air: Unhealthy or polluted air is currently one of the top 10 causes of death worldwide, especially in densely populated, rapidly industrializing nations. More information
Phytoplankton: Microscopic organisms are essential for life on Earth as we know it, forming the base of the marine food web and about half of the oxygen on Earth. More information
Urban Heat Islands: Cities are warmer than surrounding forests because paved surfaces absorb more of the sun's energy during the day and emit heat back into the air at night. More information
Albedo: The brightness of the Earth system determines how much incoming solar energy is reflected back to space. More information
Monsoons: During summer when land heats up, the winds in some tropical areas reverse and bring a large-scale sea breeze and rain over land. More information
El Niño: A change in wind and ocean circulation along the equator in the Pacific that impacts weather patterns around the world and disrupts the marine food web. More information
Carbon Dioxide: Measurements from the Mauna Loa observatory since 1958 and recent satellite imagery show an annual cycle plus a long-term rise in atmospheric CO2 levels. More information
Fast Carbon, Slow Carbon: A banana and a chunk of coal are examples of fast and slow carbon cycling between the air and land. More information
UV Index: The strength of ultraviolet radiation received at the surface of the Earth, or UV Index, varies by month, sun angle, clouds, air pollution and land elevation. More information
Ozone Hole: The annual thinning of the ozone layer above Antarctica is slowly improving, thanks to the Montreal Protocol that limited the use of ozone depleting chemicals. More information
Ozone Layer: A chemical made of 3 oxygen atoms, ozone in the stratosphere is important because it absorbs harmful UV radiation from the sun, protecting life on Earth. More information
Solar Radiation: Most energy on Earth comes from the Sun as radiation. Lightbulbs are used to illustrate primary wavelengths of solar radiation received: infrared, visible, UV. More information
Air Quality: We all breathe air. Monitoring Earth's air pollution from space shows how humans have a big effect on air quality and how it changes over time. More information
Carbon and Climate: an interactive discussion with scientists  
More ClimateBits videos coming soon...