Hi - question 1 is self evident, of course it does and in multiple ways from marine life and ecosystem impacts to decreasing water quality etc. Q.2 is much bigger and beyond my direct expertise but ultimately both are effects of a consumer driven, globalistic trade and capitalist driven economic order which has never been sustianbla en dis increasingly proving itself the author of its own demise. Effectively both are the products of the exhaust pipe of the current dominant economic world trade system