An Inconvenient Truth

By Al Gore
Published on October 1, 2006
1 / 6

The Earth as seen from the moon. Photos taken during the Apollo 8 mission in December 1968 were the first to give humankind this perspective on its home planet. It's now an inconvenient truth that humanity's collective impact is threatening the other life forms that depend on the planet.
The Earth as seen from the moon. Photos taken during the Apollo 8 mission in December 1968 were the first to give humankind this perspective on its home planet. It's now an inconvenient truth that humanity's collective impact is threatening the other life forms that depend on the planet.
2 / 6

The Basics of Global Warming: Normally (the left image), some of the sun's energy re-radiates back into space and some is trapped by the Earth's atmosphere, which keeps our temperatures within stable bounds. As human-generated greenhouse gases enter the atmosphere (the right image), it traps more infrared radiation. As a result, the temperature of the Earth rises. And is doing so to dangerous levels.
The Basics of Global Warming: Normally (the left image), some of the sun's energy re-radiates back into space and some is trapped by the Earth's atmosphere, which keeps our temperatures within stable bounds. As human-generated greenhouse gases enter the atmosphere (the right image), it traps more infrared radiation. As a result, the temperature of the Earth rises. And is doing so to dangerous levels.
3 / 6

The relationship between CO2 and temperature is complicated, but the most important point is this: When there’s more CO2 in the atmosphere, the temperature increases.
The relationship between CO2 and temperature is complicated, but the most important point is this: When there’s more CO2 in the atmosphere, the temperature increases.
4 / 6

About 10,000 years ago, when the North American glaciers melted and rushed into the North Atlantic, the Gulf Stream shut down and Europe quickly went back into an ice age. Scientists worry the same result may reoccur in the near future because of accelerating melting in Greenland.
About 10,000 years ago, when the North American glaciers melted and rushed into the North Atlantic, the Gulf Stream shut down and Europe quickly went back into an ice age. Scientists worry the same result may reoccur in the near future because of accelerating melting in Greenland.
5 / 6

It took more than 10,000 generations for the human population to reach 2 billion. Then it began to rocket upward to 9 billion in the course of a single lifetime: ours. We have a moral obligation to take this dramatic change into account in terms of the relationship between our species and the planet.
It took more than 10,000 generations for the human population to reach 2 billion. Then it began to rocket upward to 9 billion in the course of a single lifetime: ours. We have a moral obligation to take this dramatic change into account in terms of the relationship between our species and the planet.
6 / 6

Over the last century, the effects of climate change on precipitation have not been uniform. The blue dots mark the areas with increases, the orange areas with decreases. Sometimes the effects of such a large shift can be devastating.
Over the last century, the effects of climate change on precipitation have not been uniform. The blue dots mark the areas with increases, the orange areas with decreases. Sometimes the effects of such a large shift can be devastating.

Some experiences are so intense while they are happening that time seems to stop altogether. When it begins again and our lives resume their normal course, those intense experiences remain vivid, refusing to stay in the past, remaining always and forever with us.

Seventeen years ago my youngest child was badly — almost fatally — injured. This is a story I have told before, but its meaning for me continues to change and to deepen.

That is also true of the story I have tried to tell for many years about the global environment. It was during that interlude 17 years ago when I started writing my first book, Earth in the Balance. It was because of my son’s accident and the way it abruptly interrupted the flow of my days and hours that I began to rethink everything, especially what my priorities had been. Thankfully, my son has long since recovered completely. But it was during that traumatic period that I made at least two enduring changes: I vowed always to put my family first, and I also vowed to make the climate crisis the top priority of my professional life.

Unfortunately, in the intervening years, time has not stood still for the global environment. The pace of destruction has worsened and the urgent need for a response has grown more acute.

The fundamental outline of the climate crisis story is much the same now as it was then. The relationship between human civilization and the Earth has been utterly transformed by a combination of factors, including the population explosion, the technological revolution, and a willingness to ignore the future consequences of our present actions. The underlying reality is that we are colliding with the planet’s ecological system, and its most vulnerable components are crumbling as a result.

I have learned much more about this issue over the years. I have read and listened to the world’s leading scientists, who have offered increasingly dire warnings. I have watched with growing concern as the crisis gathers strength even more rapidly than anyone expected.

Online Store Logo
Need Help? Call 1-800-234-3368