When a fan buys a ticket, we learn an enormous amount about them: What bands they like, where they live, how much they are willing to spend. Someday, a fan will be sitting in a bar and his cellphone will text message 'Sonic Youth are playing tonight. Do you want to go?' He'll buy his ticket over the phone and walk to the concert.

Part of calling ourselves Live Nation was about starting to shift the way we think, to be first and foremost fan-focused.

The touring business is obviously critical to selling records, building fan bases, selling T-shirts, fulfilling sponsorship commitments.

We can't say to a Ticketmaster venue that says they want to use a different ticketing platform, 'If you do that, we won't put shows in your building.'

If you had no new technology, and you powered society as we do today - mostly by fossil fuels - you'd have only two choices: Doom yourself to horrific climate change by burning all that carbon and releasing all that CO2. Or power down society, reducing total energy usage around the planet.

The bottom line is clear: Climate change is a reality, and it is having a real impact.

If you've read 'Dark Ecology,' you'll know there's a whole thing about cats in it, more than once.

Only as far as the masters of the world have called in nature to their aid, can they reach the height of magnificence. This is the meaning of their hanging-gardens, villas, garden-houses, islands, parks, and preserves.