Carbon emissions prediction considering environment protection investment of 30 provinces in China.

In the backdrop of carbon peaking and carbon neutrality, carbon emissions have always been a major concern. The approach of the heterogeneity grey model is proposed, aiming to predict carbon emissions of 30 provinces in China. This model combines the manta ray foraging optimization algorithm to search for the optimal heterogeneity coefficient. By using the heterogeneity grey model, the carbon emissions are analyzed in 30 provinces of China from 2022 to 2030 considering different environmental protection investment scenarios. The results indicate that in 19 provinces from 2022 to 2030, there is a significant decrease in carbon emissions as government investment increases. In 11 provinces during the same period, there is a rising trend in carbon emissions with the increase of government investment. Hence, achieving a reduction in carbon emissions necessitates not only relying on government investment in environmental protection but also exploring alternative approaches to mitigate carbon emissions. The methodologies and conclusions proposed in this study can provide technical references and making decision references for provincial carbon emission efforts.

Basic occupational health services in Baoan, China.

OBJECTIVES: The aim of the study was to develop a model of basic occupational health services (BOHS) in Baoan, which could provide occupational health services (OHS) universally for workers and control occupational hazards. METHODS: Steps involved in the BOHS strategy included construction of the BOHS system, capacity building, health training and education, surveillance of workplaces and the health of workers, risk assessment, control and evaluation processes. RESULTS: This model provided BOHS to employees universally, especially migrant workers in small- and medium-sized enterprises (SMEs) who had been underserved. It expanded the coverage of OHS and improved their content. The knowledge and recognition rate of occupational diseases, the coverage rates of working places and workers rose significantly after three years development. Furthermore, BOHS were cost-effective and accepted by both employers and employees. CONCLUSIONS: Our experience suggests that a BOHS strategy might be a feasible and effective way of protecting the health of workers confronted with occupational hazards.