going to be achievable, but even if we can look at 90 95% vaccination rate in those communities, before we open up, so that we are not only protecting the elders but the children who can t be vaccinated, and as i said, with those chronic illnesses such as rheumatic heart disease, chronic iron deficiency, anaemia, we just don t know how they are going to fare. the vice president of the australian indigenous doctors association there, speaking to me earlier. the world s biggest plant to extract carbon dioxide dioxide from the air has opened in iceland. it showcases a developing technology considered by some to be an important tool in the fight against climate change. the plant will remove 4,000 tonnes of co2 every year. david campa nale reports voiceover: climeworks orca is the first plant ever - in commercial operations for i direct air capture and storage.