The Chinese Academy of Sciences (CAS) has published its annual series of reports on the latest scientific findings and outlook, according to an announcement from the CAS on Monday. This year's reports emphasized clean technologies and said the next ten years will be the most challenging time for resources and environment protection. The series noted the urgency of adopting an eco-friendly development path. The series is China's only annual overview report on science. It consists of three parts: a report on high-tech development, a report on science development, and a strategic report on China's sustainable growth. The "2014 report on science development" contains the latest research achievements by Chinese scientists, such as the finding of new particles and breakthroughs in the study of the H7N9 virus. The report also highlights issues that need attention in the near future, and suggests efforts in controlling heavy metal pollution in soil and the establishment of a national emergency medicine network. The "2014 report on high-tech development" introduces hot areas of scientific study, such as the use of 3D printing and artificial organs research. The "2014 strategic report on China's sustainable growth" calls for an overall top-level design to remove structural barriers in industry upgrades and promote energy conservation and emission reductions.