Furthermore, there's nothing stopping people building their own, more basic green walls at home, Laurence says.

CNN: Green walls create new urban jungles

Now the basic underlying point of green economics is that we face ecological constraints upon our actions.

FORBES: A Steady State Economy

We'll hear of the need for more outlays on infrastructure, education, green energy, basic research and other costly "investments" in the future, alongside contradictory promises to increase jobs and reduce the deficit.

FORBES: The 10,000 Commandments

Located in the De Pijp district, Bicycle Hotel Amsterdam is a casual, green-leaning hotel with basic but comfortable rooms.

BBC: Mini guide to Amsterdam, Netherlands

The staging settles down after that, with a few silhouetted palm trees in green and gold, enabling the basic story to come through: the kidnapping of Gilda by an entourage mistaking her for Rigoletto's mistress, the lecherous Duke's rape of Gilda, her unwavering crush and her father's quest for revenge.

WSJ: Mayer's 'Rigoletto,' set in Vegas, opens at Met

The most basic one, HueQuantize, exaggerates both red and green and moves them further to the extremes of the color spectrum, away from the indistinguishable middle ground where colorblind users get stuck.

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Peter Huber elaborates the argument in his Hard Green: Saving the Environment from the Environmentalists (Basic Books, 1999).

FORBES: Environmentalist, Spare That Tree

Oregonians saw their state as better--not only in terms of green and good, but also in terms of basic job growth.

FORBES: Magazine Article

It was also proposed to devote appropriate attention to the principle of equity, basic education and training, and gender issues, involving young people and women in the process of building green economies and societies.

UNESCO: Education