(1) Needles of Sitka spruce were illuminated on either the top or bottom surfaces or on both surfaces simultaneously, using parallel beam light. (2) `Sun' needles had higher maximum net photosynthetic ...

Mature oak trees will increase their rate of photosynthesis by up to a third in response to the raised CO2 levels expected to be the world average by about 2050, new research shows. Mature oak trees ...

Since the early 2000s, the growing level of carbon dioxide in the atmosphere has led to an increased rate of photosynthesis around the world, climate scientists have found. Plants produce energy ...

Global warming drying the air may have slowed a rising rate of photosynthesis around the world. With this plant process involving the uptake of carbon dioxide, some researchers hoped that a boost to ...