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Volume 12 Number 32:  12 August 2009

Editorial
Evolutionary Responses of Long-Lived Terrestrial Plants to Rising Atmospheric CO2 Concentrations: Studies of plants living for many generations in the vicinity of natural CO2 springs lead to some encouraging conclusions.

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from Lily Pond, General Creek Watershed, Sierra Nevada Mountains, California, USA.

Subject Index Summary
Ocean Temperatures (The Past Few Decades): Data obtained from many parts of the global ocean over the past half-century provide scant evidence for a CO2-induced warming of the world's waters.

Journal Reviews
Impacts of Tropical Cyclones on U.S. Forests: How have they varied over the past century and a half?

Holocene Fluctuations in Arctic Sea-Ice Cover: How do the most recent fluctuations compare with those of the past? ... and what are the ramifications of the answer?

The Thermal Tolerance of Kelp Crab Larvae: Even crab larvae, which are more vulnerable to thermal stress than adult crabs, have the capacity to successfully adjust to changing temperature regimes.

Seagrasses Lend Calcifying Macroalgae a Helping Hand: Local seawater pH increases caused by seagrass photosynthesis drive calcification in marine macroalgae.

Global Warming and Late Spring Frosts: Bad for Apples?: Will the looming "climate crisis" articulated by Al Gore soon spell The End for fruit growers around the world?