Festive Sustainability Advocate T-Shirts

'Dang slippery solar panels!'

Santa sits in front of computers with naughty data and nice data screens.

"Now they're referring to us as ecology nuts."

Wind-generated power. Wind turbines attached to Battersea Power Station's iconic chimneys

Rudolph goes green (compact flourescent nose)

'You and your 'Rescue the Reindeer' campaign!'

This will be an environmentally sound house built entirely from trees that fell over naturally from old age.

100% carbon neutral

"For goodness sake, not again, it's day-time but we can't see the sky: It must be another oil spill..."

Dragon Recycling the Knights it has defeated

"Sorry, Rudolph, but the production on electric reindeers and their batteries gives work to thousands of children while you destroy the climate with your farts."

'It's not as picturesque as the old steeple but it's saving a fortune in electricity bills!'

"It's an all-they-didn't-eat buffet."

"Turns that out! - We're supposed to be saving energy!!"

"Talk about energy efficient...every lightbulb in this house will outlive you!"

'I'm dreaming of a green Christmas, with every recycled Christmas card I write...'

Help! Have to pay back a big world bank loan.

Water scarcity in Africa

"Sometimes, plastic in the ocean isn't bad... Ooh, that bottle cap will make a lovely bowl for Ed and Nicole!"

'Tom will coordinate our pre-holiday point-of-purchase displays and Mark will coordinate our post holiday point-of-return displays.'

"We sing her to sleep with songs about recycling."

"Just as I feared. Tariffs."

'Look on the bright side: now we qualify for an energy-conservation award.'

Rubbish and Everest

'Santa is the delivery man, I'm the CEO. Do you know what a CEO is, Lisa?'

Climate change skeptics.

"So do you still think 'rising sea levels' is a bunch of baloney?"

"Sponsoring Christmas this year was an act of sheer marketing genius."

The world as most people see it. . The world as scientists see it.

Landing helicopters on flowers.