Dear Dr. Universe: Why do some apple trees produce more apples than others? Some produce almost none! – Alyssa, 11, Washington state I can never turn down a juicy apple. I asked my friend Kate Evans ...

Climate change has become an undisputed fact, it is evident in many regions of the world 1,2, and has an effect on hydrometeorological factors and drought severity 3,4,5,6. Forests are facing a great ...