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The u.s. government it's not focussed on the high level security issue, it's a social media company. i think it's an illustration of a potential national security vul any ability. >> let me get your thought osone other issue that came up. they released the national annual climate assessment. it is extremely likely that human influence has been the dominant cause of the observed warming since the mid 20th century. for the warming over the last century, there is no convincing alternative explanation supported by the extent of the observational evidence. are you surprised by this statement coming...

Climate change, they've found that the average temperature in the united states has risen dramatically since 1980. the "new york times" claims to have obtained a copy of a government document which is awaiting approval by the trump administration. it is not yet been made public, but "the times" has published a draft report. in it scientist from 13 federal agencies conclude that americans are feeling the effects of climate change right now. the author of the documents say it is extremely likely that more than half of the global average temperature rise since 1951 was caused by human influence. ...

Having cold conditions, record cold in some parts of the country with the fact that there's global warming. we have a technical term and we call it winter. you're going to have cold weather in winter. and the fact is, if you step back, and you look at say the last decade, and you look at all of the locations around the u.s., and you ask how often have we broken all-time records for heat versus cold? we have broken that at twice the rate. and in that, we see the fingerprint, global warm, of a human influence on climate. >> let's take a look going forward, what are you forecasting for the next c...

It was the local (indiscernible) >> some say it is faulty at best and may have a mind to support that theory. >> it may be extreme weather on steroids if it were to come true. >> it has increased one degree above fahrenheit. most of the increase has occurred over the past three decades and says we humans are the cause. it is likely the human influence is the dominant cause of the warming since the mid 20th century. when we use it lightly we have probability of 90 percent or more. do we want to jeopardize the whole planet on the 5 percent that may perhaps be rich but may never be rich.

One ideology refuse to believe it. will this report change that? >> lets hope. we knew enough to act on this problem two decades ago. ittc established back in their second assessment report in 1995 that there was already at that point a discernible human influence on the climate. all that happened in the intervening years is that the evidence has gotten stronger. we are already seeing negative impacts of those changes. in fact, in this report they go quite a bit further. not only is most of the warming due to us, but they are actually implicating that warming for the observed increase in sea l...