Tree rings hold clues about ancient solar storms. New research shows tree growth and carbon storage can shift those signals ...

By Ruth Kamnitzer Regenerating tropical forests pull carbon dioxide from the air, but a lack of nitrogen in the soil could ...

Scientists have long relied on tree rings to learn about ancient solar storms—rare bursts of high-energy particles from the ...

Long-term data from real forests indicate leaf stomata constrain gains: carbon uptake is traded for water, keeping biomass and storage uneven.