Marine biologist and blogger "WhySharksMatter" has created a list of four things everyone needs to know about sharks. Full of  thought-provoking facts and cool pictures of sharks, this post will be interesting to the ocean lover in all of us.

“Human beings are better off with sharks than we are without sharks, and we are in danger of losing them forever… but you can help!”

Link

From the Upcoming ueue, submitted by whysharksmatter.

There is finally an alternative. The British engineering firm, Novacem, has created a new cement that uses magnesium silicates, which emit no carbon dioxide when they are heated. As the cement hardens, it absorbs CO2. In all, it removes about .6 tons of carbon dioxide per ton of cement used.

Link Via Good