Part of the campaign is to make and wear green hearts to raise awareness. I still wear the heart sent to me last year by World Wildlife Fund, it was made by Annette in Guildford, who loves 'the planet'. It's now permanently pinned to my coat....
If you want inspiration to make your own green heart to wear, then you can see a whole selection that people have made in this gallery. And if you're in Hertfordshire, you may want to join the Woodland Trust in their "Show the Love Craft Session" at Heartwood Forest on 13 February.
The Climate Coalition have also produced this little film for Valentine's Day to help spread the message that the world is worth loving and protecting.
The Climate Coalition is the UK’s largest group of people dedicated to action on climate change and limiting its impact on the world’s poorest communities.
As ever, red text contains hyperlinks that take you to other webpages where you can find out more.