What is a "biome"? Life on Earth's land

>    How are the biomes distributed?

>    Where are the world's forests?

>    Where are the world's plants?

What is a "food chain"? How organisms on Earth sustain themselves

>    What is a "food web"?

>    How is energy passed along a "food chain"?

>    What is a "biomass pyramid"?

>    What is the "carbon cycle"?

>    What is the "nitrogen cycle"?

>    What is composting?

>    What is the food web in the Amazon?

>    Can we slow global warming?

What does the night side of the Earth look like? Movie of the Earth at night

>    What does the night side of the Earth look like?

What forms of energy will we use in the future? Wind, solar and biomass energy sources

Are the oceans all the same color? Differences in the color of the ocean's waters

What is the distribution of human population on Earth? Where people live

>    What is the population distribution throughout Southeast Asia?

>    How does population spread over time?

>    How have humans affected the planet?

>    How fast is the world's population growing?

What is "precision agriculture"? The use of satellites to improve crops

>    How much land is being cultivated?

>    What is the crop yield?

>    What is the food consumption rate?

>    How can ranchers improve the environment?

>    Where do most farmers live?

How does the Earth's vegetation change over a year? A movie showing changes in the Earth's vegetation

>    How does the midwest "Green Up"?

>    How does North America's vegetation change?

>    How does The World's "greenness" change?

>    How does North America's "greenness" change?

>    How does North Africa's "greenness" change?

>    What does the global vegetation look like in February?

>    What does the global vegetation look like in September?

>    What do "fire scars" look like from space?

>    Where in Africa are fires picked up by satellite sensors?

How do we determine the condition of croplands in the U.S.? A satellite map of vegetation for the U.S.

>    What is the condition of croplands compared to the previous week?

>    How do the conditions of croplands in one year compare to the year before?

>    How do crop conditions in one year compare to the long-term average?

How do we monitor change and measure growth in forests? Forest change in Yellowstone

>    Are all forest fires bad?

>    How can we map amazon land use?

>    Can we predict forest fires?

>    How is the age of the forest measured?

>    How do Yellowstone forests recover after a fire?

>    How does logging near Yellowstone affect the landscape?