Uncovering the inventions and innovations that are trying to tackle humankind's greatest ever challenge: climate change. We investigate some of the toughest problems that humans face as we enter a new era of climate instability, and tell the stories of the projects and people who are grappling with them. Supported by EIT Climate-KIC, this first series explores five projects that are tackling issues related to water, agriculture, urban development, supply chains and insurance.