Page 42 - Ocean Currents News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Andrew repken with the national geographic society, thank you. >> you're welcome. great. and now to a different part of the ocean, the right whale population. it is in decline. normally 450 north atlantic right whales are left on the planet. and the u.s. national oceanic and atmospheric administration says the species could die out in just a few decades. >> the reasons, the population decline is caused by climate change and fishing policy or a lack thereof. earlier i spoke about this with charles green, the director of the ocean resources and ecosystems program at cornell university. >> ther...

>> let's bring in andrew repken from national geographic society. thank you so much for talking with us. >> great to be with you. >> we have clear evidence that the earth's climate is warmer. that is also opening up new trade routes in the north. is it a good thing, obviously, probably for commerce, but is it a good thing in the bigger picture? how do you characterize it? >> it is complicated like so many aspects of climate change. this is my 30th year writing about it. mostly at "the new york times" and a couple of books. the issue with the -- the reality going through the northern passages, ...

Coastlines can be clear one month and blocked the next, russians are still using icebreakers. nuclear powered icebreakers to have to accompany much of the shipping there, even as sort of an insurance measure. and containerized shipping, the new thing, it is a container ship, lots of traffic through the arctic already of ships that are not in a hurry. >> so, i want to ask you what is causing the new northern sea route? what is causing it? >> it is all about efficiency. you mean the actual passages? >> yes, the climate. >> warmer -- warming climate, ocean currents particularly is the ocean warms...

A carbon dioxide for photosynthesis after they've bloomed the microorganisms sink down into the deep sea disposing of the c o two they've incorporated. nutrients used for fertilization could be dispersed around the world by a major ocean currents that would increase plumes of fido plankton and algae. but here too the potential for c o two capture is ten percent at most and what effect it would have in the ecosystem is unclear and possibly risky. experience with climate engineering has been gathered on land as well in switzerland giant pump the syllabi is have been sucking c o two. ackley out o...

Of mind, but this is really happening. plastics that we throw away every day, the straws, baht bottles, the bags, they'll come back and haunt in a big way. >> this is a beach in the cominute can republic. that's the ocean but you can't see the water. right now tons of plastic waste are washing up on the shore quicker than volunteers be able to haul it away. that's just one beach. >> at least 8 million tons of plastic goes into our oceans every year. this according to word economic forum. and that's like dumping the contents of one garbage truck into the ocean every minute. the united nations p...