Designed by Milton Glaser, the American who is best known for his I ♥ NY logo back in 1977, this is how he visualised climate change globally and designed this logo. A simple black circle with a gradient of green depicting earth in a rather deteriorating manner. There is a website for the campaign too, where you can send US$5 and get 5 buttons to wear, sending the word out to everyone. Shipping those buttons to Singapore is a ridiculous US$40.75 via USPS though, so we reckon you rather not.
Don’t like the buttons or logo? Don’t worry, you still can spread the bad news via #itsnotwarming hashtag.