You must update your website every day by adding more unique content & you can also deal your link with web owners. Place their link on your website & they will set your link in them, their are other more ways you can increase your page rank.
fix onsite errors which listed in webmasters tools, also "Green Tip 1", "~2" .. "~30" isn't good idea for links anchors )) you've got 30 internal links with almost same anchors from homepage... name them relevant
If possible first do changes with your domin name: climate--change {--} Why continusly {--} two space hyphen? This kind of domin name is not more suitable as I know Start link busilding like directory submission, article submissin, social bookmarking, blog comment, forum posting, also put the same site link in your signature in this forum.
You can do Articke submisions, Blog posting and commenting, Create relevant back link to your site.....
Hi..If you want to increase the page rank, do the blog comment and link buiding services as 2 way or 3 way with high relevant sites which will help in SEO.