Tsinghua's Atmospheric Pollutants and Greenhouse Gases Synergistic Control Team, received the National Engineering Award.

The teaching team of Tsinghua University's air compound pollution control team was selected as the third batch of Huang Danian-style teaching teams in national universities.

The discipline of Environmental Science and Engineering got A+ in the National Discipline Assessment by the Ministry of Education.

"Technology and Application of Synergistic Deep Purification for Multi-Pollutants in Flue Gas" Project led by Professor Li Junhua won the first prize of the National Science and Technology Progress Award.

Beijing Laboratory of Environmental Frontier Technologies was approved for construction.

Professor QU Jiuhui was elected as foreign member of the National Academy of Engineering.

Professor HAO Jiming was elected as foreign member of the National Academy of Engineering.

Professor QU Jiuhui and his research team joined SOE.

The discipline of Environmental Science and Engineering got A+ in the National Discipline Assessment by the Ministry of Education.

Undergraduate programs of Environmental Engineering and Water Supply and Wastewater Engineering received ABET accreditation.

National Engineering Laboratory for Flue Gas Multi-Contaminant Control Technology and Equipment established.

Professor HE Kebin was elected as an academician of the Chinese Academy of Engineering.

SOE ranked No. 1 in Environmental Science and Engineering of the National Discipline Assessment by the Ministry of Education.

Professor CHEN Jining was appointed as the President of Tsinghua University.

DESE developed into School of Environment (SOE).

DESE ranked No. 1 in Environmental Science and Engineering of the National Discipline Assessment by the Ministry of Education.

The Sino-Italian Environment and Energy-efficient Building (SIEEB) was constructed as new home of DESE.

Program of environmental engineering was listed as the National Key Discipline by the Ministry of Education.

Professor HAO Jiming was elected as an academician of the Chinese Academy of Engineering.

Program of environmental engineering was listed as the National Key Discipline by the Ministry of Education.

Doctor degree program of environmental science and Doctor degree program of municipal engineering were initiated.

One achievement won the first prize of the National Science and Technology Progress Award.

DEE changed its name to the Department of Environmental Science and Engineering (DESE).

Professor GU Xiasheng was elected as an academician of the Chinese Academy of Engineering.

Professor QIAN Yi was elected as an academician of the Chinese Academy of Engineering.

State Key Joint Laboratory on Environment Simulation and Pollution Control was approved by the Ministry of Science and Technology.

Program of environmental engineering was listed as the National Key Discipline by the National Education Committee.

The department building of DEE was constructed with financial support of the State Administration of Environmental Protection.

Department of Environmental Engineering (DEE) was established.

Doctoral degree program of environmental engineering was initiated.

Institute of Environmental Engineering was established jointly by Tsinghua University and the State Administration of Environmental Protection.

Department of Civil and Environmental Engineering was established.

Master's degree program of environmental engineering was initiated.

Bachelor's degree program of environmental engineering was initiated.

Laboratory of water supply and sewerage engineering was constructed.

Undergraduate program of water supply and sewerage engineering was initiated.

Laboratory of sanitary engineering was constructed.

Department of Municipal Engineering was established at Tsinghua University.