Human extinction can not be caused by humans

-Clarification remarks- I will agree to the updated changes that my opponent has suggested for this debate. I am going to start this debate by saying the reasons why human extinction can not be caused by humans. -1) Humans expanding into space greatly decreases the chance for the human race to go extinct- When Columbus officially discovered the Americas the world human population increased. The reason for that is because the large majority of humans found a place to expand. To have a human extinction is for every human to no longer exist, but when there are more humans the chances for humans to go extinct greatly decreases. Although all the land masses on Earth have been discovered, there is still opportunity to expand and discover space. When humans discover a way to colonize the cosmos, the number of humans in existence will increase. With the recent launch of the space X dragon, it shows that the human race is almost ready to go out and colonize space. In summary of this point, when humans go out into space to colonize, there will be more humans and if there is something bad such as a large meteor going to crash into the earth then it wouldn't cause a total extinction because there will still be humans somewhere. -2) Homo-sapiens are resilient and strong- The species known as homo-sapiens, or more commonly known as humans, are capable to adapt to diseases, environments, and situations. Humans are the only known "intelligent life." If there was something to happen that may have been man made, then there will be humans who could adapt to it. There are always special occasions where a human or a group of humans are capable to do things that might seem extraordinary. What I am trying to say by this point is that humans are capable to survive, which makes a 100% human extinction not likely. -3) A nuclear war wouldn't cause a 100% human extinction- Biggest nuclear bomb that we know of is the Tsar Bomba[1], which has a blast radius of 35km.[2] Using A=(pi)*R^2, the blast area is 3,848.451km^2. Now lets take the surface area of the earth which is 510,072,000 km^2[3], and find out how many it takes Tsar Bombas it takes to cover the entire earth by dividing the surface area of the earth by the area of the bomb which comes out to 132,539.5594 Tsar Bombas. But does the world have enough well according to FAS.org or Federation of American Scientists, they say that there are only 19,000 roughly[4] Well you can do the math here and say that we don't have 132,539.5594 Tsar Bombas in the world. The reason why I bring this up is because to show that if there was a nuclear war, it wouldn't be a 100% total human extinction, there is still a chance that humans can live after a nuclear war. -Summary- I understand that times are getting scary and a lot of people are claiming that we will be our own down fall, but we will also save our selves because soon we will start to expand into space. Once humans expand into space then the chance for human extinction will greatly decrease. Humans think of our selves as squishy and easy to kill, that's because we were not exposed to the environments as our ancestors but a human is a human, they still have the survive ability as any human. The reason I put in that nuclear bomb point was just in case you decide to talk about nuclear bombs. For these reasons I ask you to vote Pro. Thank you. Cites: [1] = http://en.wikipedia.org... [2] = http://en.wikipedia.org... [3] = http://en.wikipedia.org... [4] = http://www.fas.org...