A quarter of the world's population lives in countries facing extremely high water stress every year. That's according to the UN's Food and Agriculture Organization. And with farming accounting for more than 70% of global freshwater use, the pressure on supplies is only growing. Now the UAE is looking to tackle the problem and unlock billions in potential investment in water projects. 

Space tourism is becoming a reality and big business, with travellers paying millions for the ultimate holiday. And Dubai is attracting attention from companies hoping to cash in on the demand. 

This week, Dulsco Environment’s recycling bus has been visiting businesses and schools across Dubai and Abu Dhabi, collecting recyclables ahead of World Sustainability Day on Wednesday, the 28th of October. 

And what if a simple selfie could help doctors predict how well someone might survive cancer?