Save the Earth is a website where you can count the good actions you're doing for the earth.
Rate your daily/weekly/monthly actions
Upgrade your character
A very good concept, and a pretty good first version of it!
The website is very intuitive to use, responsive and good-looking overall, so it pretty much works as advertised. If I were to make a suggestion about the presentation, maybe the black & green "hacker"-like theme could be switched to something that fits the concept more (maybe a mix of green and blue on white backgrounds).
Obviously the site is still a bit incomplete to make us adopt it every day, but I'm sure you have a solid start here, all it would need is more features. Here is what I think could help to make this work:
For future UI/UX maybe you can find inspiration in apps like Duolingo (language learning) and Runkeeper (tracking for sport activities).
I like the look and feel of the art, and the concept. The interface was a little broken when I registered (text fields spilled over each other), and I wasn't entirely sure what to do with my character once I registered, other than fill in some immediate slots about what environmentally friendly actions I did.