As we reach the end of the third week of our carbon revolution series, here are ten standout quotes from people pioneering ways of removing the element from the sky and putting it to use on Earth.

"Carbon is very special"
Carbon is the most important and versatile element on Earth, according to carbon nanomaterials professor Andrei Khlobystov. "Carbon is very special," Khlobystov told Dezeen. "All life on Earth is based on carbon."
Khlobystov believes that science is well on its way to developing viable ways of removing carbon from the atmosphere and turning it into useful products.
"If you take carbon dioxide, remove oxygen atoms and add some hydrogen atoms, we can make liquid fuels that we can use to drive cars," he said. "You can also turn it into polymers," he said. "You can make chemicals. We can make ethanol out of carbon dioxide and then use it to make vodka, for example."

"Earth has no carbon emissions"
Ancient construction techniques can offer better ways of building zero-carbon housing than high-tech solutions, according to Pakistani architect Yasmeen Lari, who has used earth, bamboo and lime to construct thousands of dwellings.
"There are lots of ancient wisdoms and techniques that have been used over the years but I can't imagine most so-called starchitects would even look at them," Lari told Dezeen.
"I can't say that I've done any kind of evaluation but I do know that earth...