Small victories and bigger defeats

The coming into force of the UN's Kyoto protocol on climate change might seem a victory for Europe's greens, but it actually masks a larger failure. The most promising aspect of the treaty—its innovative use of market-based instruments such as carbon-emissions trading—was resisted tooth and nail by Europe's greens. With courageous exceptions, American green groups also remain deeply suspicious of market forces.

If environmental groups continue to reject pragmatic solutions and instead drift toward Utopian (or dystopian) visions of the future, they will lose the battle of ideas. And that would be a pity, for the world would benefit from having a thoughtful green movement. It would also be ironic, because far-reaching advances are already under way in the management of the world's natural resources—changes that add up to a different kind of green revolution. This could yet save the greens (as well as doing the planet a world of good).

The text

Item 1 warns the environmental groups that they risk losing the battle of ideas.

Considere o modelo:

Yt = αZ_t + βY_t-1 + e_1t (equação I)
Z_t = λZ_t-1 + e_2t (equação II)

em que !$ \alpha !$, !$ \beta !$ e !$ \lambda !$ são parâmetros e

!$ e_t = { \begin {pmatrix} e_{1t}\\e_{2t} \end{pmatrix}} \sim\,Normal \left [ { \begin {pmatrix} 0\\0 \end{pmatrix}}, { \begin{pmatrix} \sigma_{11}^2\,\,\,\,\sigma_{12}\\\sigma_{12}\,\,\,\,\sigma_{22}^2 \end{pmatrix}} \right ] !$

Item 2 Os estimadores de mínimos quadrados ordinários de α e β, na equação I, só serão consistentes se σ₁₂ = 1.

Avalie a afirmativa:

Item 3 !$ \int\limits_{0}^{ \infty} 2xe^{-2x} dx = 2 !$.

If governments invest seriously in green data acquisition and co-ordination, they will no longer be flying blind. And by advocating data-based, analytically rigorous policies rather than pious appeals to "save the planet", the green movement could overcome the skepticism of the ordinary voter. It might even move from the fringes of politics to the middle ground where most voters reside.

Whether the big environmental groups join or not, the next green revolution is already under way. Rachel Carson, the crusading journalist who inspired greens in the 1950s and 60s, is joining hands with Adam Smith, the hero of free-marketeers. The world may yet leapfrog from the dark ages of clumsy, costly, command-and-control regulations to an enlightened age of informed, innovative, incentive-based greenery.

According to the text

Item 3 command-and-control is to the dark ages what incentive-based policies are to the enlightenment.

If governments invest seriously in green data acquisition and co-ordination, they will no longer be flying blind. And by advocating data-based, analytically rigorous policies rather than pious appeals to "save the planet", the green movement could overcome the skepticism of the ordinary voter. It might even move from the fringes of politics to the middle ground where most voters reside.

Whether the big environmental groups join or not, the next green revolution is already under way. Rachel Carson, the crusading journalist who inspired greens in the 1950s and 60s, is joining hands with Adam Smith, the hero of free-marketeers. The world may yet leapfrog from the dark ages of clumsy, costly, command-and-control regulations to an enlightened age of informed, innovative, incentive-based greenery.

According to the text

Item 2 appeals to “save the planet” still inspire large segments of society.