Glossary of Climate Change - R

R

• Radiative forcing - is (loosely) defined as the change in net irradiance at the tropopause
• Removal unit - a tradable carbon credit or 'Kyoto unit' representing an allowance to emit one metric tonne of greenhouse gases absorbed by a removal or Carbon sink activity in an Annex I country
• Runaway greenhouse effect - somewhat ill-defined term, associated with the idea of large irreversible temperature rises