Time, my brothers and sisters, seems to be running out; we are not yet tearing one another apart, but we are tearing apart our common home. Today, the scientific community realizes what the poor have long told us: harm, perhaps irreversible harm, is being done to the ecosystem. The earth, entire peoples and individual persons are being brutally punished.

Combating climate change is absolutely critical to the future of our company,Green Cooler customers, consumers-and our world. I believe all of us need to take action now. PepsiCo has already taken actions in our operations and throughout our supply chain to 'future- proof' our company-all of which deliver real cost savings, mitigate risk, protect our license to operate, and create resilience in our supply chain.

It is a source of great pride to me that the leading role my husband played in encouraging people to protect our fragile planet, lives on through the work of our eldest son Charles and his eldest son William. I could not be more proud of them.

The poverty of the people and the devastation of the natural environment painfully strike me.

The nuclear approach I'm involved in is called a traveling-wave reactor, which uses waste uranium for fuel. There's a lot of things that have to go right for that dream to come true - many decades of building demo plants, proving the economics are right. But if it does, you could have cheaper energy with no CO2 emissions.

Let us sing as we go. May our struggles and our concern for this planet never take away the joy of our hope.