Hotter Earth Three Billion Years Ago Revealed by Rocks
Pasadena researchers report that isotopic analysis of quartz rocks indicates Earth’s average temperatures were about 218 degrees warmer than today three billion years ago. The Caltech measurements suggest a markedly hot planetary stage that may explain why complex life did not yet flourish, while bacteria and blue-green algae persisted.
MENTIONED IN THIS ARTICLE
Pasadena
Caltech
Pat Knewth
Epstein
Louisiens
Temperature records in chert reveal ancient Earth climates
Paleoclimate researchers report chert temperatures mirror long term shifts in atmospheric temperatures across eras. Epstein notes isotopic values align with crystallization temperatures, backed by samples from Arbuckle Mountains Oklahoma and Laurenceton Missouri buried depth differences, preserving original climate signals.
MENTIONED IN THIS ARTICLE
Epstein
Arbuckle Mountains
Oklahoma
Missouri
Laurenceton
Earth
New solar cell boosts energy use despite cost factor
A new thin film solar cell, rivaling conventional electricity costs, promises 1 to 3 cents per watt under full production. The development, from the Apelor Institute of Energy Conversion, could enable widespread solar power as costs fall and efficiency rises.
MENTIONED IN THIS ARTICLE
Bowey
New del
Fed
Convertignel Suis
Erda
Brad Byers
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