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CREDIT: COURTESY OF CAS<br />

Research CAS/In Focus<br />

Climate Change: Carbon<br />

Budget and Relevant Issues<br />

To confront climate change issues and find an optimized<br />

approach for sustainable development in<br />

China, a program has been put in place that aims<br />

to tackle a series <strong>of</strong> S&T issues by bringing together<br />

multiple disciplines at CAS. Issues to be add<strong>res</strong>sed<br />

include quantitative verification <strong>of</strong> the total ter<strong>res</strong>trial<br />

carbon budget <strong>of</strong> China, identification <strong>of</strong> opportunities<br />

for creating/strengthening carbon sinks, developing<br />

the means to create/strengthen these carbon<br />

sinks, and analyzing the relationship between the<br />

increase in greenhouse gases and future global climate<br />

change.<br />

This program is expected to meet the fol<strong>low</strong>ing<br />

goals: (i) to build a system <strong>of</strong> data <strong>res</strong>ources, scientific<br />

knowledge, and supportive technologies for the<br />

creation <strong>of</strong> national policy on reducing greenhouse<br />

gases and strengthening carbon sink potential as<br />

well as implementing strategic decision-making<br />

for sustainable development <strong>of</strong> the nation; (ii) to<br />

significantly improve the quality <strong>of</strong> domestic <strong>res</strong>earch<br />

in fields such as ecological systems and climate change, quantification<br />

and verification <strong>of</strong> territorial carbon budget, technologies and measu<strong>res</strong> to<br />

strengthen carbon sinks in ecological systems, and managerial policies for<br />

regional carbon budgets as well as to achieve a significant improvement in<br />

S&T development as a basis for add<strong>res</strong>sing climate change and increase<br />

China’s role in the international climate change community; and (iii) to<br />

establish a team <strong>of</strong> high-level S&T pr<strong>of</strong>essionals capable <strong>of</strong> dealing with the<br />

current trend <strong>of</strong> integration <strong>of</strong> different disciplines.<br />

This program will set up a total <strong>of</strong> 15 subprojects to pursue its goals,<br />

falling into five task clusters: greenhouse gas emissions, carbon sequestration<br />

<strong>of</strong> ecological systems, sensitivity to climate change, impacts <strong>of</strong> and<br />

<strong>res</strong>ponses to climate change, and green development.<br />

Contacts: Pr<strong>of</strong>essor Liu Yi, liuyi@mail.iap.ac.cn, and Pr<strong>of</strong>essor Lu Daren,<br />

ludr@mail.iap.ac.cn<br />

By reforming<br />

the existing way<br />

that IT <strong>res</strong>earch<br />

is conducted,<br />

technology and<br />

scientific <strong>res</strong>earch<br />

can be improved.<br />

Next Generation Sensor<br />

Technology Research in China<br />

A strategic priority <strong>res</strong>earch program in<br />

next generation information technology (IT)<br />

<strong>res</strong>earch has been established in China<br />

that aims to meet growing demands for a<br />

countrywide network <strong>of</strong> sensors, including<br />

information sensing equipment, information<br />

transmission, and information processing<br />

equipment. The overarching challenges<br />

to a widely distributed sensor network are<br />

power dissipation, performance, cost, and<br />

security. This program is based on the innovative<br />

concept <strong>of</strong> fusing humans, computers,<br />

and physical systems into a Human<br />

Computer Physical Network Cloud.<br />

To fully utilize the opportunity <strong>of</strong> this triple<br />

Figure 3. A new generation <strong>of</strong> IT-based on systematic,<br />

transformative innovation.<br />

integration, the concept <strong>of</strong> a so-called Sea-Network-Cloud (a sea <strong>of</strong> sensors<br />

connected to a transmission network, all linked to a processing cloud)<br />

has been proposed and a test platform built. By reforming the existing<br />

way that IT <strong>res</strong>earch is conducted, technology and scientific <strong>res</strong>earch can<br />

be improved, while simultaneously establishing a technical foundation for<br />

bringing together technological, infrastructural, and social <strong>res</strong>ources.<br />

This program promotes the real-world evolution from 2-D to 3-D integration<br />

through the fusion <strong>of</strong> human, computer, and physical systems by<br />

combining Zettabyte (ZB)-level data, Sea-Cloud processing (the collection<br />

and processing <strong>of</strong> data from the sensors and the deposition <strong>of</strong> this<br />

data into a central processing center), end-to-end evolved networks with<br />

quality assurance, and sensors collecting data about the physical world.<br />

The program is designed to provide key technical support for the construction<br />

and development <strong>of</strong> a more intelligent, secure, and serviceoriented<br />

information society. To achieve this goal, a systematic and innovative<br />

new generation IT technology has to be developed, as shown<br />

in Figure 3.<br />

This program will face significant scientific challenges, including: developing<br />

a system architecture for IT technology over the next 20 years<br />

that is designed for efficiency; limitations in the ability to simultaneously<br />

collect and process large amounts <strong>of</strong> data; the evolution, robustness,<br />

adaptability, and manageability <strong>of</strong> the future network; providing<br />

easy access to large amounts <strong>of</strong> complex information from heterogeneous<br />

sources; and developing a secure IT system that balances cost<br />

and efficiency.<br />

CAS has initiated a number <strong>of</strong> international collaborations around the<br />

Sea-Network-Cloud. This program aims to further international collaboration<br />

on the evolution <strong>of</strong> IT infrastructure and the development <strong>of</strong> highperformance<br />

computing as well as high-performance core routers. This will<br />

create a foundation for building out future information and sensor networks,<br />

provide effective access to information, and achieve effective and more<br />

intelligent management <strong>of</strong> natural <strong>res</strong>ources and maintenance <strong>of</strong> information<br />

security.<br />

Contacts: Pr<strong>of</strong>essor Tian Jing, tianjing@iie.ac.cn and Ms. Wang Yuhan,<br />

wangyuhan@iie.ac.cn<br />

25

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