Finally, we know why pee is yellow

Scientists finally resolved a mystery you may not have known needed solving — we now know why urine is yellow.

Live Science
Scientists investigate anaerobic degradation and conversion of the volatile hydrocarbon isoprene

Isoprene is the world's most abundant biogenic volatile hydrocarbon, and its annual contribution to greenhouse gas emissions is similar to the carbon dioxide equivalent of methane. However, the degradation and transformation of isoprene in the environment is still unclear.

Phys.org