Finding the 1859 Carrington Event in Tree Rings

What was significant in the recently published study was how the radiocarbon content of trees in Lapland differed from that of trees at lower latitudes.

Graph of the week – #2 in a series

Historical data from ice cores shows that during glacial periods, or “ice ages,” atmospheric CO2 levels have dropped dangerously low, to 180 ppm of CO2.

From the atmosphere to the abyss: Iron’s role in Earth’s climate history

Iron is a vital nutrient for marine life and plays a significant role in regulating atmospheric carbon dioxide by influencing the growth of phytoplankton, which absorb carbon dioxide.

New Study: Corals Thrived When Global Sea Levels Were Meters Higher Than Today 6000 Years Ago

Coral reefs expand and thrive as sea levels rise, whereas they undergo millennia of growth hiatuses and “turn-off” or “mass mortality” phases when sea levels fall.