Catalog Search Results
Author
Description
"Storms from the Sun explores the emerging science of space weather and traces its increasing impact on a society that has become dependent on space-based technologies. Authors Carlowicz and Lopez explain what space weather really means to us down here - and what it may mean for future exploration and colonization of distant worlds. By translating the latest findings of NASA researchers and other top scientists into an account of scientific discovery,...
Description
Investigates why so many of our ocean's animals are disappearing. Case studies focus on global issues including climate change, sea-level rise, over-fishing and habitat destruction. Antarctica: The Emperor penguin is dependent upon sea ice to reproduce and raise its young. But global warming is beginning to melt the sea ice surrounding the Antarctic, and it could lead to the extinction of the species. Melbourne Beach, Florida: Sea turtles have been...
3) Atmosphere
Description
The atmosphere is what makes the Earth habitable. Heat-trapping gases allow ecosystems to flourish. While the NOAA Global Monitoring Project documents the fluctuations in greenhouse gases worldwide, MIT's Prof. Kerry Emanuel looks at the role of hurricanes in regulating global climate.
Description
The early Earth was a much different planet than the one we know today. Ancient rocks provide evidence of the emergence of oxygen in the atmosphere and of a frozen Snowball Earth. Scientists Paul Hoffman and Andrew Knoll look at these clues to help explain the rise of complex animal life.
Description
Global energy use increases by the day. Polluting the atmosphere with ever more carbon dioxide is not a viable solution for our future energy needs. Can new technologies such as carbon sequestration and ethanol production help provide the energy we need without pushing the concentrations of CO2 to dangerous levels?
7) Agriculture
Description
Will world population outrun food resources? The "Green Revolution" of the 20th century multiplied crop yields, in part through increasing inputs of pesticides and fertilizers. How can farmers reduce their use of agricultural chemicals and still produce enough food?
Description
Tropical glaciers are the world's thermometers; their melting is a signal that human activities are warming the planet. A California project tries to predict whether natural ecosystems will be able to absorb enough additional carbon dioxide from the atmosphere in the next 50 years to mitigate the full impact of human-induced greenhouse gas emissions.
Description
Once released, air pollutants react chemically with each other under solar radiation to become even more dangerous secondary pollutants. A company in the Northeast U.S. tracks the emission of pollutants at street level, while an international long-term study follows plumes of pollution from Mexico City across the continent and beyond.
10) Ecosystems
Description
Scientists from the Smithsonian Center for Tropical Research document the astounding abundance of diversity in tropical rainforests to discover why so many species coexist that are competing for the same resources. In North America, the Yellowstone Wolf Reintroduction project explores why removing just one species dramatically changed the distribution of plants and animals up and down the food web.
11) Water Resources
Description
While essential to the lives of humans and animals, fresh water only accounts for six percent of the world's water supply. Scientists in Florida's Everglades and the water challenged Southwest consider the optimum use of existing sources of fresh water for both humans and ecosystems.
Description
Species are being lost at a rapid rate in rainforests and coral reefs. Yet many species still have not been discovered. Tropical scientists struggle to keep ahead of the bulldozers as they work to understand this complex ecosystem. And an ocean biologist predicts the death of life and the "rise of slime" in the sea. How can we protect the biodiversity of these vulnerable ecosystems?
14) Oceans
Description
Ocean systems operate on a range of scales, from massive systems such as El Niño that affects weather across the globe, to tiny photosynthetic organisms near the ocean surface that take in large amounts of carbon dioxide. This program looks at how ocean systems regulate themselves and thus help maintain the planet's habitability.
Description
"The Story of Life & the Environment: An African Perspective is about the fragile miracle of life. It's a celebration of the Earth's rich and wonderful diversity - the species, populations, communities and ecosystems that surround us - and of nature's resilience. It unpacks the three major ecosystems: fresh water, the ocean and the land, and the teeming life each supports on and around Africa. It discusses evolution and the ever-branching tree of...
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