I like the bamboo one and HOUSE because form seems to follow function and the end results don't look like the more silly entries in a clothing fashion show or like mobile homes accessorized with cars on cinder blocks and beer gutted rednecks.
However houses are for suburbia and suburbia is a stupid idea because it increases commute distances and wastes land. The lack of shared walls wastes materials and reduces energy efficiency.
IMO, a contest for high-rise building and urban designs would be more interesting and green. Combine homes and shops in one building surrounded with gardens and recreational areas to form a mini village. Cluster villages around light industrial areas. Layout everything to capture solar power and funnel wind for wind power. Surround the cities with wilderness. Connect cities with high speed rail. If done right, no one would need a car. Since, IIRC, cars end up using more energy than houses, getting rid of cars would save more energy than green houses ever could.
Nice job sliding the anti-firearm propaganda in there, but don't forget that firearm ownership happens to be very common in "wholesome" parts of the country where crime is rare and weapons are treated with respect.
Huge honking load of bullshit in my personal experience. I lived most of my childhood in a "wholesome" rural southern community of about 40 households. By the time I was 13, I had had a shotguns pointed in my face twice by different gun-toting NRA Tea Party types. Once for trying to visit a girl I went to school with. Once for trying to bring my run-away dog back home. Scout's honor, I had done absolutely nothing wrong. As a teen I was again threatened, though more subtly, by a different neighbor because my family took the neighbor's friend to court because the friend built a fence across our driveway. This neighbor also shot my cat with a BB gun and laughed at me for crying when she died.
There are legitimate reasons to own a gun, but as far as I can tell, the people most interested in owning guns are seriously fucked up and should not be trusted with firearms.
How exactly do you test solutions for catastrophe of unknown nature
By having built a simulator that can reproduce all possible conditions and seeing which kill methods work. If solution does not exist, then do not drill. That is what the oil industry would have done if they were the trustworthy people conservative asshats claim they are. However, the evidence seems to suggest these are sociopathic criminals without regard for life, human or other. They are another perfect example of why free market capitalism does not work.
An authority is a person who can tell you more about something than you really care to know.