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Over 70% of the planet is water, and that is where we should look to live. A place on our own planet where we can sustain life and it would be impervious to drought, weather, global warming and even a catastrophic event that could take place on the surface.
In 1942, when French Undersea Explorer Jacques Cousteau explored the Sargasso Sea, he could see underwater for about 300 ft. Today, he reports, the visibility has shrunk to barely 100 ft. When he first started diving in the Mediterranean 25 years ago, it was filled with life. Today? "You can hardly see a fish 3 in. long." What has happened is that pollution has caught up with the seas' and oceans' ability to cleanse themselves. Cousteau estimates that the vitality of the seas, in terms of fish and plant life, has declined some 30% to 50% in the past 20 years.
Global Warming is a major concern, but underwater, would there be one until we could research a way to mobilize ‘large amounts’ of people to another planet after colonization rather than just the select few going. We cannot do that now but we can build structures underwater.
An ocean impact by a 500-yard-diameter asteroid will vaporise about
20 cubic miles of water. At first sight this appears to be insignificant
since it is less than one tenth of the total amount of water that
evaporates from the world's oceans every day (assuming 1 inch of
rain over 10 percent of the Earth's surface each day).
Scientists caution, however, that an ocean impact would send the
water vapour high into the atmosphere, compared with the lower
atmosphere, or troposphere, in the case of evaporation. The upper
stratosphere is normally extremely dry and the effects of a sudden
injection of a large quantity of water vapour are simply unknown.
Other effects of concern are greenhouse warming (water vapour is a
strong greenhouse gas) and ozone depletion. Unlike evaporation, an
ocean impact would send salt (sodium chloride) into the air. The
chlorine in the salt may affect upper atmosphere ozone levels in the
same way as chlorofluorocarbons.
Terraforming a planet for life requires construction. If we look at the ISS orbital, we can see how long it would take to build a substation on another inner planet. Do we have that much time?
Not only is a planet in need of the ability to host life, but it must be able to also sustain that same life form.
The climate change that is theorized using 100 years of data, data that recently has been proven false and unusable was provided by NASA themselves, the ones that you argue to fund. An asteroid strike is more likely to occur on another uninhabited planet than earth. Check the facts. Ever see those craters on Mars?
A pandemic can occur at anytime, and to be honest, if there is a virus outbreak, who is going to launch the rockets. I think you could find someone who could operate a boat, barge or even a submersible before you could repopulate Ground Control in Houston or Kennedy.
Other species on this planet have perished, but none had the technology to survive.
We cannot fix the past but we can learn from it and be proactive, not reactive. We are but a small line in the grand scale of time on this earth.
Near Earth Objects (NEOs) are plentiful.
If a person lives to be 80, her or his odds of being around when the next multi-megaton blast from an asteroid collision occurs (somewhere on the planet) are roughly 1 in 12.5. Space within Earth's orbit is crowded with Near Earth Objects.
Some recent near misses
* On March 18, 2004, Asteroid 2004 FH passed approximately 26,500 miles above the Earth's surface (one-tenth of the distance to the Moon). Astronomers had detected it just three days before.
* Another near earth object designated 2004 AS1 created concern on Jan 13, 2004. Initial measurements indicated that it would hit Earth within 27 hours. "Astronomers come within minutes of alerting the world to a possible asteroid strike." Wired News
• Near Earth Asteroid 2004 MN4, briefly held a Torino Scale index of 4 (a record high) before being declared safe.
If we take the knowledge we have gained from spaceflight and then apply it to the vast open areas of oceans on our own world, can we not save our planet without risk of dying on another?
there was definately no knock out round. At the end of the day, to me at least, Semper was indeed the winner of this debate
semperfortis wins this round. While both opponets did well, esdad seemed to be on the defensive and tied his strategy to the oceans etc which semperfortis was able to counter easily.
semperfortis has one glowing weakness, and was doing very little to hide it. Both presented strong arguments, but esdad71 was tight on the facts and avoided some of the scare tactics that semperfortis seemed to embrace with each post.
Overall, both should be proud.