A

Adaptation

Taking actions to avoid, benefit from, or deal with current and future climate change. Adaptation can take place in advance (by planning before an impact occurs) or in response to changes that are already occurring. Taking actions to avoid, benefit from, or deal with current and future climate change. Adaptation can take place in advance (by planning before an impact occurs) or in response to changes that are already occurring.

Aerosol

Aerosol: A collection of tiny solid or liquid particles in the atmosphere that can come from natural sources (such as wildfires, dust storms, and volcanoes) or people’s activities (such as burning fossil fuels). Some aerosols make the atmosphere warmer because they absorb energy. Others have a cooling effect because they reflect sunlight back to space. Aerosols also influence cloud formation.