Forest Fragmentation Drives Mass Extinctions; Humans' Unprecedented Ecodamage; Alaska Melt Drives Sea Rise
World’s Forests Are Fragmenting Into Tiny Patches, Risking Mass Extinctions. Global forest fragmentation reduces biodiversity by up to 75 percent. This exacerbates the extinction risk of millions of forest species, many of which we still don’t know much about. The shock waves of loss thus extend far beyond the footprint of deforestation.
Humans causing catastrophic ecosystem shifts, study finds. Never before has a single species become the top predator on land and sea, and human dominance over the natural environment has caused shifts in world ecosystems unprecedented in the last 500 million years, researchers said on Tuesday.
Alaska’s Rapidly Melting Glaciers: A Major Driver of Global Sea Level Rise. “There is a lot of momentum in the system, and Alaska will continue to be a major driver of sea level change in the upcoming decades.”