Une solution efficace et peu coûteuse au réchauffement planétaire

COPENHAGUE – Avec le réchauffement planétaire, les victimes de la chaleur seront de plus en plus nombreuses. On verra le niveau des eaux monter, et le paludisme, la famine et la pauvreté gagner du terrain. Les inquiétudes sont grandes, pourtant, l’humanité fait peu pour lutter réellement contre ces fléaux. Malgré maintes promesses de réduction des émissions de carbone, ces dernières ne cessent d’augmenter.

Il est de notre intérêt à tous de freiner le changement climatique. Nous avons fait appel aux spécialistes du climat pour qu’ils nous informent sur le problème du réchauffement planétaire. Maintenant, nous devons faire appel aux économistes du climat pour qu’ils nous éclairent sur les bénéfices, les coûts et les résultats éventuels des différentes solutions à ce problème.

Les leaders de la planète se rencontreront en décembre prochain à Copenhague pour mettre au point un nouveau pacte de lutte contre le réchauffement climatique. Devront-ils poursuivre les plans fondés sur des promesses de réduction des émissions de carbone qui ne seront probablement pas tenues ? Devront-ils plutôt retarder les réductions d’une vingtaine d’années ? Que peut-on obtenir en plantant plus d’arbres, en limitant le méthane ou en réduisant les émissions de suie ? Est-il raisonnable de se concentrer sur une solution technologique au réchauffement ? Ou devrions-nous simplement nous adapter à un monde plus chaud ?

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