Ever wanted to compare how much CO2 is emitted by ironing a shirt versus taking a space shuttle flight?

Or how sending an email tallies against return flights from London to Hong Kong?

That’s now possible with an online app which allows users to size up the carbon footprint of one everyday item or task with another.

Chris Rowson, Managing Director of eCO2 Greetings said: “Carbon footprint is always mentioned when talking about cars or air travel, but never when talking about a banana or cheeseburger.

“We want to make people aware that there’s more than just fossil fuels harming the environment.”

The company promised to plant a new tree for every 100 shares it gets across social media.