Food Systems, Sustainability and Climate Change Food Systems, Sustainability and Climate Change Glossary

Any of the atmospheric gases, both natural and anthropogenic, that contribute to the greenhouse effect by absorbing infrared radiation produced by solar warming of the Earth's surface. Water vapor (H₂O), carbon dioxide (CO₂), methane (CH₄), nitrous oxide (NO₂) and ozone (O₃) are the primary greenhouse gases in the atmosphere.

Heat trapping effect of greenhouse gases in the troposphere (lowest portion of the earth's atmosphere)

Relating to or considered in terms of pleasant (or unpleasant) sensations.

Enabling a person to discover or learn something for themselves. Techniques, activities or lessons that allow someone to discover something for himself or by finding solutions through experiments or loosely defined rules.

Study directed toward gaining (scientific) knowledge to meet a recognized need

Study directed toward gaining (scientific) knowledge primarily for its own sake