Our Changing Planet
Air. Water. Ice. Rock. Life. These five things link together to make our planet hum. They’re a team. Scientists call them systems. Each system plays an important role, and they all depend on each other. Scientists have fancy names for these systems: Atmosphere (air), Hydrosphere (water), Cryosphere (ice), Geosphere (rock), and Biosphere (life).
Weather and Climate: What’s the Difference?
Weather is what’s happening outside now. It’s the combination of moisture, heat, air pressure, and wind in the atmosphere. Weather tells you that you need to put on a raincoat or sun hat before you go out. Climate is average weather conditions over a much longer period of time. Climate describes general patterns of moisture, heat, air pressure, and wind in the atmosphere over years and decades. Earth’s climate has been warming, especially in recent decades.
Societal efforts to respond to climate change have not expanded at the scale needed to avoid substantial damages to the economy, environment, and human health over the coming decades. Take action now by registering your library.