More species can live in a warmer temperature than an ice age. There are more species at the equator than the North and south poles. So why be concerned? Because of the ocean. Not the rise and fall of it but the temperature. Cold and Hot are what run our weather, ocean currents, and protect the earth with currents or flows of energy. We have a valuable resource of methane hydrate frozen on the ocean floor about 400 million trillion cubic feet that's one of many different estimates, anyway a lot, a real lot of this frozen gas. As the ocean warm and this gas is released we have a real problem can you say extinction. My question is at what point do we reach the point of no return with the ocean temperatures?