"...the largest of all the positive or temperature-amplifying feedbacks in  the un’s arsenal is the water-vapor feedback.
"...the largest of all the positive or temperature-amplifying feedbacks in  the un’s arsenal is the water-vapor feedback.
climate change feedback:128
climate change feedback
since water vapor is a greenhouse gas, the increase in water vapor content makes the atmosphere warm further; this warming causes the atmosphere to hold still more water vapor (a positive feedback), and so on until other processes stop the feedback loop.