Honorable Mention
2011 Skyscraper Competition
Gary Kellett
United Kingdom
The World’s oceans cover over 70% of the planet’s surface, contribute to half of its primary production and contain an enormous diversity of life. They also play a vital role in the Earth’s life support system through regulating climate and global biogeochemical cycles through their capacity to absorb atmospheric carbon dioxide.
The pH (a measure of acidity; the lower the pH, the greater the acidity) of pristine seawater measures from 8 to 8.3, meaning oceans are naturally alkaline. When carbon dioxide dissolves in seawater it forms carbonic acid. As more C02 is taken up by the oceans’ surface, the pH decreases towards a less alkali and therefore a more acidic state. This is called “ocean acidification” and is happening at a rate that hasn’t been experienced for at least 400,000 years. The effect of ocean acidification on marine ecosystems and organisms that inhabit them has only recently been recognized and is of serious concern to scientists and policy makers involved in climate change, biodiversity, and the marine environment.
The underpinning concept for the Coastalscraper is to reduce the acid levels of the oceans by adding fossilized Coccolithophores to the water. The perfect location for the project is the south east corner of England, with a vast geological swathe of Coccolithophore (white chalk) spanning from the outskirts of London, and terminating in what is known as The White Cliffs of Dover. The scheme proposes that these vast chalk deposits are to be excavated, refined and stored in large silos before being pumped out to sea where it can begin to neutralize the effects of sea acidity. Read the rest of this entry »




















