THE Sustainable City Expo has experienced great popularity in its first year partnering with the Science Cafe.
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Saturday's event, held at Dubbo Regional Botanic Gardens, featured simple ways to make Dubbo more sustainable, said Dubbo mayor Mathew Dickerson.
"There were things on display that weren't pie in the sky ideas, they were very here and now," Cr Dickerson said.
"Things like installing skylights so people don't have to put lights on during the day can be done quite easily."
The expo has been held annually for nine years and started as an information night featuring 13 exhibitors and 200 people.
Exhibitor numbers and attendants have doubled since then and has now partnered with the like-minded Science Cafe which attracted all sorts of people, said Cr Dickerson.
"The Sustainable City Expo and the Science Cafe have enough similarities and synergy to combine the two and it's been a very successful idea," he said. "There were people there that were interested in the world and science around our environment."
The expo featured live interviews with some of the top scientists of the region, including Canberra's Australian National University, short SCINEMA films, kids' hands-on science activities and prizes.