This year's Nobel Peace Prize justly rewards the thousands of scientists of the United Nations Climate Change Panel (the IPCC). These scientists are engaged in excellent, painstaking work that establishes exactly what the world should expect from climate change.

The other award winner, former US Vice President Al Gore, has spent much more time telling us what to fear. While the IPCC's estimates and conclusions are grounded in careful study, Gore doesn't seem to be similarly restrained.

Gore told the world in his Academy Award-winning movie (recently labeled "one-sided" and containing "scientific errors" by a British judge) to expect 20-foot sea-level rises over this century. He ignores the findings of his Nobel co-winners, the IPCC, who conclude that sea levels will rise between only a half-foot and two feet over this century, with their best expectation being about one foot.

Likewise, Gore agonizes over the accelerated melting of ice in Greenland and what it means for the planet, but overlooks the IPCC's conclusion that, if sustained, the current rate of melting would add just three inches to the sea level rise by the end of the century. Gore also takes no notice of research showing that Greenland's temperatures were higher in 1941 than they are today.

Gore also frets about the future of polar bears. He claims they are drowning as their icy habitat disappears. However, the only scientific study showing any such thing indicates that four polar bears drowned because of a storm.

The IPCC has magnanimously declared that it would have been happy if Gore had received the Nobel Peace prize alone. I am glad that he did not, and that the IPCC's work has rightfully been acknowledged.

Gore has helped the world to worry. Unfortunately, our attention is diverted from where it matters. Climate change is not the only problem facing the globe. Gore concentrates above all else on his call for world leaders to cut CO2 emissions, yet there are other policies that would do much more for the planet. Over the coming century, developing nations will be increasingly dependent on food imports from developed countries. This is not primarily a result of global warming, but a consequence of more people and less arable land in the developing world.

The number of hungry people depends much less on climate than on demographics and income. Extremely expensive cuts in carbon emissions could mean more malnourished people. If our goal is to fight malnutrition, policies like getting nutrients to those who need them are 5,000 times more effective at saving lives than spending billions of dollars cutting carbon emissions.

Likewise, global warming will probably slightly increase malaria, but CO2 reductions will be far less effective at fighting this disease than mosquito nets and medication, which can cheaply save 850,000 lives every year. By contrast, the expensive Kyoto Protocol will prevent just 1,400 deaths from malaria each year.

While we worry about the far-off effects of climate change, we do nothing to deal with issues facing the planet today. This year, malnutrition will kill almost four million people. Three million lives will be lost to HIV/AIDS. Two and a half million people will die because of indoor and outdoor air pollution. A lack of micronutrients and clean drinking water will claim two million lives each.

With attention and money in scarce supply, what matters is that we first tackle the problems with the best solutions, doing the most good throughout the century. If we focus on solving today's problems, we will leave communities strengthened, economies more vibrant, and infrastructures more robust. This will enable these societies to deal much better with future problems - including global warming. Committing to massive cuts in carbon emissions will leave future generations poorer and less able to adapt to challenges.

Bj?rn Lomborg is the organizer of Copenhagen Consensus, adjunct professor at the Copenhagen Business School, and author of Cool It and The Skeptical Environmentalist.

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