Most biologists, (says Vogel, 1981) seem to have heard of the boundary layer, but they have a fuzzy notion that it is a discrete region, rather than the discrete notion that it is a fuzzy region.

Trees are responsible for 3/4 of all rains

To accumulate wealth, power or land beyond one's needs in a limited world is to be truly immoral, be it as an individual, an institution, or a nation-state.

You can't cooperate by knocking something about or bossing it or forcing it to do things.

Say you're working for a big overseas aid organization. You can't leave home in a Mercedes Benz, travel 80 kilometers to work in a great concrete structure where there are diesel engines thundering in the basement just to keep it cool enough for you to work in, and plan mud huts for Africa! You can't get the mud huts right if you haven't got things right where you are. You've got to get things right, working for you, and then go and say what that is.

Few people today muck around in earth, and when on international flights, I often find I have the only decently dirty fingernails.

Why is it that we don't build human settlements that will feed themselves, and fuel themselves, and catch their own water, when any human settlement could do that easily? When it's a trivial thing to do?