So I'm really not so confident anymore about this. I'm not only worried about the ecology, but how to do it...
So far I know that methanogens live in
waterlogged areas among murky mud. This is very positive news for it allows the
distribution of nano-silver to take place. The methanogens are not miles below
the surface but in the accesible top soil. 

Research also shows that nano-silver is purchased in liquid format, a very
easily used state. Knowing the methanogens live in waterlogged areas, the liquid
nano-silver would simply have to be placed in one spot, for the substance to be
carried throughout the enviroment through the water. The method for pumping
nano-silver into the land is still unknown.

So we just got the project and I'm excited, but also pretty nervous. I really like my idea and I think it's a worthwile one and it definetly makes a lot of sense, but the ecological aspect worries me. After all, mass genocide of any species usually doesn't sit well with the ecological balance. I mean after all Earth doesn't have good experience with humans trying to alter nature. But the sad truth is we've been doing that and because we just can't change our habits, which our race depends on greatly, we have to change nature. I mean humanity contributes the most to Global Warming but let's assume its a neccessary evil. Then we have to alter nature's contibutions. I think I'm going to need an advosr to know more about the ecological