Terra 2050

The video states that by 2050 we will need 3 planets to live as today. That means that the total population of the 3 planets will be about 18 billion habitants. However www.overpopulation.com states that by that year we will be about 9 billion:

Under the UN’s medium variant scenario, world population will reach 9.1 billion in 2050. This represents a slight upward revision from more recent estimates that had worldpopulation reaching just 8.9 billion in 2050.

Another source, www.overpopulation.net/, states that:

 People that are somewhat aware of human population numbers are talking about the 8.9 billion in 2050.

Which supports the commentary above. Probably the video didn't mean that we will need 3 planets because of a lack of space. Maybe the video means that we will not have enough resources like fresh water or agricultiral products because scarcity will be present:

As a result, the amount of water available per person is expected to decline by 74 percent between 1950 and 2050

and that that agriculture will not increase:

 there is little hope for restoring growth in food output.

Other frase that the video states is that: 2/3 of the world's languages will disappear by 2050.  This quote is probably true as the source http://www.wholeearth.com/issue/2100/article/138/disappearing.languages states that

Many linguists predict that at least half of the world's 6,000 or so languages will be dead or dying by the year 2050

This statement given by the video is mostly true, because 6000 of the total languages (circa 7000) will be extinct, so more than 2/3 will extinct.
Other web site, www.bbc.co.uk says that

more than a third of the world's six thousand languages are (currently) in danger of extinction.

 So if 1/3 of the languages are currently being extinct, by the year 2050 that number will increase


With the Terra 2050 videos we can se that most of the the thoughts of the future are mainly part of one's imagination although there are a few facts that are true.


Although we are not too sure if these sources are reliable, we can still trust them because all of them agree and state almost the same facts