The material foundations of a low-carbon economy

Energy supply and environmental capacity are important material foundations for social and economic development and constraints for scientific and sustainable development, and with achieving the strategic goals of carbon peak and carbon neutral at an early date, too. Therefore, the international community generally regards energy-economic- environment (3E) as a necessary research direction. This paper studies the relationship among effective energy utilization, economic growth protection and ecological environment protection by establishing the contribution rate model of energy consumption factors to economic GDP growth. At the same time, this paper puts forward the government needs to use carbon trading market, carbon tax, such as low carbon management mechanism based on the Pareto Optimality of carbon trading market, prompts the excess money of the country or the region back to actively invest in low-carbon production, lets more energy companies to clean energy and low carbon production transformation, and helps to achieve the goal of regional energy industry carbon neutral.

Circular economy concepts—including a circular bioeconomy—aim to transition the current, essentially linear, economic system to a more sustainable one. However, organizations and researchers currently define the circular economy concept differently, resulting in inconsistencies and difficulty in effectively implementing the framework. In this paper, we provide our perspective on the conceptual definitions of the circular economy, bioeconomy, and circular bioeconomy, outlining potential overlaps and differences and proposing a harmonized interpretation that stresses the importance of the carbon cycle. We conclude that the key goal of a circular economy is to slow, narrow, and close material resource loops, built on the foundation of renewable energy and non-toxic materials. Further, a sustainable bioeconomy goes beyond simply switching fossil resources with renewable, biological resources. It requires low-carbon energy inputs, sustainable supply chains, and promising disruptive conversion technologies for the sustainable transformation of renewable bioresources to high-value bio-based products, materials, and fuels. The bio-based circular carbon economy, in particular, stresses capturing atmospheric carbon via photosynthesis and exploiting this unique feature to the fullest extent possible. It sits at the intersection between the circular economy and the bioeconomy concept, resulting in a framework that focuses on closing the carbon cycle and stressing the opportunity to create an additional carbon sink capability in the technosphere by utilizing biogenic carbon for products and materials that are circulated in same or improved use cycles. Lastly, a sustainable circular bioeconomy transition will necessitate a set of consistent metrics that fit all products and industries.

Highly efficient hydrogenation of levulinic acid into γ-valerolactone over modified bifunctional yolk-shell catalyst.

Energy is Chinese colleges and universities teaching, scientific research, teachers and students necessary life important material foundation, Chinese universities energy management of category is coal, natural gas, water, electricity, petroleum products and other consumer as the main body of the management. At present, China has more than 2,000 university, nearly 30 million college students, more than 600 million a year college graduates to get campus. If during the period of “11th five-year plan” in accordance with the overall savings goals is to realize the project and has already useful can tap water project with useful in 2005, per capita water consumption of energy and associated with the basis of which are calculated, annually national 15% reduced energy for 465 million tons university section BiaoZhunMei, equivalent to 991 million mega cities annual total usage can; Every year for water-saving quantity 5.68 billion cubic meters, equivalent to 653 million mega cities a year life water quantity. Therefore, Chinese universities should establish green, low carbon development philosophy, and strengthen energy management in energy, work hard to solve existing in the management of regulatory system construction are not perfect, energy saving not strong, unreasonable energy consumption structure, from management, operation, security, and discusses scientific and effective energy management methods, improve the quality and level of energy management.