Gold prices are soaring. Cue the gold rush, and with it, more challenges for Brazil and efforts to protect the world's largest tropical forest, write Robert Muggah and Mac Margolis.

The 26-year-old protester, Manuel Esteban Paez Terán, was killed in January in an Atlanta-area forest as police cleared an encampment of activists who oppose the construction of Atlanta's "Cop City."

Conservationists say a sustainable fishing program has helped the recovery of the local pirarucu — which can be up to 10-feet long and weigh 450 pounds.

Last year, Georgia saw 2,444 forest fires burn around 12,500 acres — down from a 10-year-high in 2017.

Ecologist Suzanne Simard says trees are "social creatures" that communicate with each other in remarkable ways — including warning each other of danger and sharing nutrients at critical times.

A symbol of Lebanon's resilience through its long, turbulent history, the country's towering cedars now face increasing threats from wildfire and parasites, both fueled by global warming.