Lincoln memorial covered with algae

"The National Park Service is trying to remove a thick layer of green algae from the reflecting pool in front of the Lincoln Memorial less than a month after a $34 million overhaul was completed.
Workers desperately used nets to try to remove the build-up of algae and scum that covered one entire end of the pool Friday while tourists walked by puzzled by the slimy sight.
The reflecting pool was just re-engineered to be shallower in order to use less water, but the conditions have also proven to be perfect for an algae bloom."

Read more: http://www.dailymail.co.uk/news/article-2209197/It-aint-easy-green-Lincoln-Memorial-reflecting-pool-covered-algae--just-weeks-34MILLION-renovation.html

So they spent $34 million to make the reflecting pool shallower to save water, which causes the water to be warmer. EPIC FAIL!