How can people get fresh food in the city? Liz Waid and Bruce Gulland look at the growing market of vertical farming. Can these city gardens be better for people and the environment?
Bruce Gulland and Liz Waid share some ways people can protect themselves from dangerous sicknesses that come from extremely hot weather.
What can people do about the problem of pollution? Adam Navis and Liz Waid tell about a film that looks at the problems of dealing with pollution in China.