This short article from the BBC News summarizes recent geochemical studies of Martian meteorites. Researchers have concluded that the climate of Mars has been cold and dry for the past four billion years, and that erosional features visible on the planet's surface must have occurred during brief warmer, wetter periods.
Subject: Geoscience:Lunar and Planetary Science, Atmospheric Science:Climatology Resource Type: Scientific Resources:Overview/Reference Work Theme: Teach the Earth:Course Topics:Planetary Science, Atmospheric Science, Teach the Earth:Incorporating Societal Issues:Climate ChangeKeywords: argon, ALH84001, nakhlite
