Radiation emitted by the Earth’s surface, the atmosphere, and clouds. Infrared radiation has a distinctive range of wavelengths (“spectrum”) longer than the wavelength of the red color in the visible part of the spectrum. The spectrum of infrared radiation is practically distinct from that of solar or short-wave radiation because of the difference in temperature between the Sun and the Earth-atmosphere system. (Adapted from IPCC. 2001. Climate Change 2001: Synthesis Report. Annexes. https://www.ipcc.ch/site/assets/uploads/2018/03/annex.pdf)
The extracellular complete virus particle consisting of RNA or DNA and the associated protein coat that is capable of causing infection. (https://lod.nal.usda.gov/nalt/67145)
