Free‐air CO2 enrichment (FACE) allows open‐air elevation of [CO2] without altering the
microclimate. Its scale uniquely supports simultaneous study from physiology and yield to …

Abstract The Intergovernmental Panel on Climate Change projects that atmospheric [CO2]
will reach 550 ppm by 2050. Numerous assessments of plant response to elevated [CO2] …

Highlights•The last 27 years of FACE (free-air CO 2 enrichment) experiments were
reviewed.•Elevated CO 2 decreased evapotranspiration of both C 3 and C 4 plants about …

Model projections suggest that although increased temperature and decreased soil moisture
will act to reduce global crop yields by 2050, the direct fertilization effect of rising carbon …

Stimulation of C 3 crop yield by rising concentrations of atmospheric carbon dioxide ([CO 2])
is widely expected to counteract crop losses that are due to greater drought this century. But …

The current global rise in atmospheric carbon dioxide concentration,[CO2], has stimulated
interest in the response of agricultural crops to [CO2]. The objectives were to determine the …

Rising atmospheric carbon dioxide concentration ([CO 2]) in this century will alter crop yield
quantity and quality. It is important to understand the magnitude of the expected changes …

There is some evidence that rice cultivars respond differently to elevated CO2
concentrations ([CO2]), but [CO2]× cultivar interaction has never been tested under open …

Rising atmospheric [CO2] is a uniform, global change that increases C3 photosynthesis and
could offset some of the negative effects of global climate change on crop yields. Genetic …

There have been many experimental studies to evaluate the response of vegetation to the
effect of increases in the partial pressure of carbon dioxide in the atmosphere (p CO 2) that …