Follow the PCB and Mercury trail in our oceans

Marine biologist Stephen Palumbi gave a talk at TED about the massive problem with pollutants in our oceans, and the disease and death this causes everywhere in the world, throughout the food chain, including us. http://www.youtube.com/watch?v=ooAIIeo4AJQ Keep in mind what he says, then read this article, where the problem of toxins found in whales is … Continue reading Follow the PCB and Mercury trail in our oceans

Marine mammals, underwater sounds and shipping noise

A neat talk by Peter Tyack at TED, entitled "The Intriguing Sound of Marine Mammals", in which he explains the effect of human noise on the sounds made by marine mammals, and what's being done to correct the situation. A few tidbits: Better propeller designs decrease propeller noise by up to 90% Insulating the engine … Continue reading Marine mammals, underwater sounds and shipping noise