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UN: global e-waste surging; up 21% in 5 years

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million metric tonnes (Mt) of electronic waste was generated worldwide in 2019, up 21% in just five years, according to the UN’s Global E-waste Monitor 2020. of 2019’s e-waste was collected and recycled. According to the report, Asia generated the greatest volume of e-waste in 2019—some 24.9 A record 53.6

Waste 259
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China researchers hydrotreat waste engine oil and scrap tire oil blend to produce diesel- and jet-range fuel

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Researchers at Henan Polytechnic University in China have hydrotreated the oil derived from hydrothermal liquefaction of scrap tires (STO) with waste engine oil (WEO) using five different activated carbon-supported noble metal catalysts—Pd/C, Pt/C, Ru/C, Ir/C, and Rh/C—for the production of liquid fuels. —Lou et al.

Oil 220
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New inventory of black carbon emissions from China finds 2007 levels higher than previously reported

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The paper by researchers from Peking University and Environment Canada appears in the ACS journal Environmental Science & Technology. For the remaining sources, the following fuel consumption data were used: national data from the United Nations Statistics Division (1949?1970); 2007 were used in this study. —Wang et al.

2007 271
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Measurements of CO2 and CO in China’s Air Indicate Sharply Improved Combustion Efficiency

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The findings, published in the 21 September issue of Atmospheric Chemistry and Physics , are generally consistent with official Chinese government statistics and could bolster their credibility as international negotiations proceed on commitments of China and other nations to combat climate change. She completed her Ph.D. Munger, J.

CO2 199
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Lotfi Zadeh and the Birth of Fuzzy Logic

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Fuzzy theory is wrong, wrong, and pernicious,” said William Kahan, a highly regarded professor of computer sciences and mathematics at the University of California at Berkeley in 1975. Kalman in 1972, who is now a professor at Florida State University in Tallahassee. Vital Statistics Name Lotfi A. But Zadeh never wavered.

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Discovery of Protein Critical in Regulation of Algal Photosynthesis Could Enable Engineering of Algae That Make Better Use of Light

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Cells at the surface of the culture hog all the sunlight and end up wasting most of it because the absorption of excess sunlight makes the cells more susceptible to photoinhibition. Preliminary results indicate that the biophysical process is much the same as the process for green plants even though the protein environment is different.

Light 199
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The Long View from SAE 2009 World Congress

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Professor Robert Cervero, Department of City and Regional Planning, University of California-Berkeley. Professor Sebastian Thrun, Stanford University. Cities account for 2% of the world’s area and yet they account for 75% of the resources and 75% of the waste ,” said Cervero. Dr. Luca Guala, Systemica. Still, Prof.

2009 150