>> we're actually 50 times safer from the climate than we were 80 years ago because we have technology powered by fossil fuels. john: the wealth, so we burn more energy than in else and our air is cleaner. >> right. we have to look what is the big picture? what is the alternative. john: wind, solar. >> there is such a thing as imaginary alternative. if we look alternative exists in reality, we used to burn wood with indoor air pollution. we used to burn coal inside. we have decentralized power plants. that is nothing against wind and solar if those were decently performing industry. we want best energy and right now that is overwhelmingly fossil fuels. john: in a few years ago europe was caught in frenzy of carbon emissions, the british government paid for this commercial. >> there was once a land where the weather was very, very strange. there were awful heat waves in some parts and in others terrible storms and floods. someplaces could even disappear under the sea. and it was the children of the land that had to live with the horrible consequences. the grown-ups realized they had