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Science News for February 13, 1997


Gold: Life On Mars May Still Exist

Microbial subsurface life is likely to be found on Mars and other planetary bodies in our solar system. The theory proposes that life evolved from the inside out, using rocks for oxygen, and suggests that petroleum has come up from great depths, not from biological sediments.

Fluctuations In Food Supply Increasing

The world's major cereal crops have increased variability in quantity from year to year, posing a risk to the poorest people who spend much of their income on food. Long-term climate change, technology adoption stages, and other factors contribute to these fluctuations.