Full-text search Fulltext search 13 Resultate An end to flight shame Will we ever be able to fly with a clean conscience again? The good news: Technologies for zero-carbon aviation are already available today. The bad: It will take years to bring them to market. Green Steel Revolution Steel production is responsible for eight percent of CO2 emissions worldwide. Alternative manufacturing processes exist, but the investments are high and the road is long. Two experts provide insights. Cheap raw material for smartphones and solar cells Whether for smartphone screens or solar cells: Precious metals such as iridium or ruthenium are in high demand. Researchers from Basel have developed a cheaper and less toxic alternative.