UN sums up climate science: world heading in wrong direction

With weather disasters costing $200 million a day and irreversible climate catastrophe looming, the world is "heading in the wrong direction," the United Nations says in a new report that pulls together the latest science ...

How light and temperature work together to affect plant growth

Plants lengthen and bend to secure access to sunlight. Despite observing this phenomenon for centuries, scientists do not fully understand it. Now, Salk scientists have discovered that two plant factors—the protein PIF7 ...

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