This information was released at a workshop themed 'Green solutions for water resources' which was held by the Ministry of Natural Resources and Environment on Friday. The event explained that waste water is a big challenge, as enterprises use a large amount of water but recycle and reuse little of it. Furthermore, climate change has caused serious droughts and salinity. Over 10 presentations at the event pointed out solutions for the problems such as strengthening international cooperation and renovating policies on water management.