Atmosphere: Air Pollution and Its Effects
Earth's atmosphere supports and protects all of its life, giving the planet its blue skies, mild temperatures, and weath... MoreAtmosphere: Air Pollution and Its Effects
Geosphere
People exploit the land for desired resources, such as oil, minerals, or timber, or they convert vast expanses of natura... MoreGeosphere
Oceans: How We Use the Seas
Earth's seas play a tremendous role in the planet's systems: Ocean currents transfer water and heat around the globe, an... MoreOceans: How We Use the Seas
Biosphere
Earth's astonishing diversity of life - in coral reefs, Arctic tundra, tropical rainforests, deep-sea hot springs, and m... MoreBiosphere
Hydrosphere: Fresh Water Systems and Pollution
Earth is the water planet, but only a tiny amount of the planet's water is fresh and usable, and water pollution has bec... MoreHydrosphere: Fresh Water Systems and Pollution
Climate
Though climate change is normal in Earth's history, global warming has raised average temperatures to their highest in t... MoreClimate
Humans and the Natural Environment
No other species in Earth's history has been able to disregard the natural laws that govern population size quite like h... MoreHumans and the Natural Environment
Our Fragile Planet Set
While change has been fundamental to the planet throughout its history, people have altered the environment in myriad wa... MoreOur Fragile Planet Set
Polar Regions
They're absolutely frigid and often dark. They're also impossibly beautiful and full of interesting life. If you had the... MorePolar Regions
