- 1,009 viewsDuration: 7:47Waste is now a major driver of the climate crisis, accounting for nearly 10 percent of global greenhouse gas emissions. The United Nations Environment Programme warns that if current trends continue, global waste could surge to 3.8 billion tonnes by 2050. But amid these alarming projections, the Kenyatta University teaching, referral, and research hospital is taking a different path, rolling out a bold zero-waste strategy that integrates sustainable energy and efficient waste management, in a move that is protecting both human health and the environment.