>> i want to thank you all for being with us, michael oppenheimer and saleemul huq, co-authors of theewly released ipcc report. thank you to tim gore of oxfam, speaking to us from sweden. and we come back, "dragnet nation." stay with us. ♪ [music break] >> this is democracy now!, democracynow.org, the war and peace report. i'm amy goodman with nermeen shaikh. >> weekend today show with our interview with you later prize-winning investigative journalist julia angwin, author of the new book, "dragnet nation: a quest for privacy, security, and freedom in a world of relentless surveillance." withs currently propublica. you can watch the first part of our interview on the website. we began by asking her how she tried to increase her own online privacy. >> a basically conducted this exercise because i felt that we are always told we have made the choice to give up our privacy, and -- >> by going online? >> by going online and choosing to use free services and we really given it up for security for free services. i thought, i will withdraw that choice and see if i can still live in the moder

michael oppenheimer is a coordinating lead author of it. and a professor of geosciences and international affairs at princeton university. and patricia romero lankao of the u.s. national center for atmospheric research was a lead author of a chapter about north america. she's a sociologist who studies the societal impact of climate change. and we welcome you both to the program. michael oppenheimer, it seems one of the screaming headlines from this is that people need to pay attention. what had been felt to be in the future is happening now. how do you read the main conclusions today? >> right. we're already detecting some of the effects of climate change on the whole system we live in. we're detecting changes in crop yields. we're detecting changes in the frequency of heat waves and heat waves kill, and we're detecting the massive changes in globally important systems like the arctic and coral reefs on which people's lives and the climate system depends. so changes are happening and we need to get on doing something about it, both reducing

from new york, michael oppenheimer , is it fair professor to say that there was slight change of tone. instead of talking about years to come there was discussion about what is visible now? >> that's correct. because although previously the climate changes themselves like heat waves or intense precipitation were obviously detected by scientists. the impacts were not. number one, crop yields, the growth in crop yields are slowing in some places due to climate change. this is extremely important because crops have extended per decade but now it will slow in the future and that bears implications because population is growing, and in addition to eating habits are changing. dietary habits using more grain per person. the other notable detection it's possible to say that more people are dying from excess heat in climate change than are surviving due to reduced threat of getting sick and dieing in winter. on the whole hot weather is bad for you, and we see that threat coming on and being detect: heat waves, excess hot weather are expected to increase in the future, and that's a real threat

also michael oppenheimer. a professor at princeton and one of the main authors of the study. i am pleased to have all of them here. i said to jeffrey when he sat down it is worse than we thought and he said, you can be sure that is true. the piece that says guys caps on areing, -- ice caps melting, ice waves and heavy rain are intensifying. species are going extinct. oceans are becoming more acidic as the observed co2. melting frozenis in soils. what is going on? >> what is going on in fact is in a way somewhat predictable because in the science community, these facts have been known for at least a couple of decades. not everyone but the dangers have been understood. it has been true that the more refined the measurements, the more careful the observation. the more the risks have been confirmed. as the world economy has continued to grow, even though we see it crisis, china is continuing to grow rapidly using more and more energy. the pace of human induced climate change. the pace of carbon dioxide entering the atmosphere has gone up. when you look at the trajectory not only

new york jeffrey sachs the director of the earth institute of columbia university and also michael oppenheimer a professor at prime stop and one of the main authors of the icct study. please to do have all of them here. i said to jeffrey when he sat down it's worse than we thought. and he said you can be it's true. the piece that said ice caps are melting. sea ice in the arctic is collapsing, water supplies are coming under stress, heat waves and heavy rains are intensifying, coral reefs are dying and going extinct. oceans are arising at a pace that threatens coastal oceans are becoming more acidic as they absorbed co2 and organic matter frozen in soils is not melting. what's going on? >> what's going on in fact is in a way somewhat predictable because in the science community, these facts have been known for at least a couple decades. not everyone but the dangers have been understood. it has been true that the more refined the measurements you can, the more careful the observations, the more the risks have been confirmed. and as the world economy has continued to grow, even we see a crises tr