Glossary

  • AGC - active galactic centre
  • AGW - anthropogenic global warming
  • C12 - carbon isotope with atomic weight 12
  • C13 - carbon isotope with atomic weight 13
  • CAGW - catastrophic anthropogenic global warming
  • CO2 - carbon dioxide
  • dC13 - delta carbon thirteen, ratio between C13 and C12
  • Gt/yr - metric gigatons per year
  • kms - kilometres
  • m - metres (occasionally minutes)
  • MWP - Medieval Warm Period
  • N-machine - One-piece (magnet and disc corotate) Faraday disc generator
  • PETM - Paleocene-Eocene thermal maximum 
  • ppm - parts per million
  • SO2 - sulphur dioxide
  • ton - could be imperial ton or metric ton depending on context
  • Tt - terra tonnes