. >> grilled, sautÉed prosprocessed or packaged. america's obsession with meat is ferocious.onsume over 270 pounds per person per year. but now, the demand for meat is spreading to new global heights and experts predict we won't be able to sustain it. >> i would say we are already not doing it sustainability. we are crawing on the planet's resources more than we should be alone. >> the united nations estimates meat consumption will rise nearly 75% by 2050. the rising trend has triggered a new crop of meat alternatives helping to ease our reliance. >> here in california, we have a small town with the headquarters. >> criminal gangs risking lives >> it's for this... 3 grams of gold >> killing our planet >> where it's blood red... that's where the mercury is most intense >> now, fighting back with science... >> we fire a laser imaging system out of the bottom of the plane >> revealing the deadly human threat >> because the mercury is dumped into the rivers and lakes, it then gets into the food chain... >> that's hitting home >> it ends up on the dinner plate of people... >> tech