The Nature portal will have five main educational Hubs:Earth, Atmosphere, Water, Life, and Ecosystems.  There are many global challenge Hubs related to the Nature portal under development.

The following Nature challenge networks has been started: Climate Change Network and the Climate Communication Hub.

The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth’s gravity that surrounds the planet and forms its planetary atmosphere.

The atmosphere of Earth creates pressure, absorbs most meteoroids and ultraviolet solar radiation, warms the surface through heat retention (greenhouse effect), and reduces temperature extremes between day and night (the diurnal temperature variation), maintaining conditions allowing life and liquid water to exist on the Earth’s surface.