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As China's economic lifeline, the iron and steel industry used to be a black smoke maker and blue-sky killer in the eyes of many people. In 2007, SO2 emissions by China's large and medium-sized steel and iron enterprises were estimated at 756,368 tons, down 0.51 percent year-on-year. And the discharge of industrial coal ash was 382,275 tons with a 2.79 percent decline. Otherwise, soot discharges increased 3.02 percent, totaling 156,648 tons. The Long March of environmental protection and energy efficiency for China's steel and iron enterprises is still challenging, though many in the iron and steel industry have launched a green revolution in order to improve their old image. Wuhan Iron and Steel (Group) Corp (WISCO) is one such environmental protection warrior. As China's thrid largest steel and iron manufacturer, WISCO used to be a major polluter in Wuhan, capital of Hubei province. Many residents complained and criticized the firm, joking that sparrows would turn black after flying over WISCO's mills.

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"Donald Sadoway: The missing link to renewable energy Tweet this talk! (we'll add the headline and the URL) Post to: Share on Twitter Email This Favorite Download inShare Share on StumbleUpon Share on Reddit Share on Facebook TED Conversations Got an idea, question, or debate inspired by this talk? Start a TED Conversation, or join one of these: Green Home Energy=Hydrogen Generators-alternative sources Started by Kathleen Gilligan-Smith 1 Comment What is the real missing link in renewable energy? Started by Enrico Petrucco 8 Comments Comment on this Talk 60 total comments Sign in to add comments or Join (It's free and fast!) Sort By: smily raichel 0 Reply Less than 5 minutes ago: Nice smily raichel 0 Reply Less than 5 minutes ago: Good David Mackey 0 Reply 3 hours ago: Superb invention, but I would suggest one more standard mantra that they should move on from and that is the idea of power being supplied by a centralised grid. This technology seems to me to be much more beneficial on a local scale, what if every home had its own battery, then home power generation becomes economically more viable for everyone. If you could show that a system like this could pay for itself in say 5 years then every home would want one. Plus for this to be implemented on a large scale requires massive investment that could be decades away. Share the technology and lets get it in homes by next year. Great ted talk. Jon Senior 0 Reply 1 hour ago: I agree 100%. Localised energy production would also make energy consumers more conscious of their consumption and encourage efforts to reduce it. We can invent and invent all we want, but the fast solution to allowing renewable energies to take centre stage is to reduce the base energy draw. With lower baseline consumption, smaller "always on" generators are required to keep the grid operational. Town and house-l

Sony Corp will invest $369 million (40 billion yen) to power up its lithium-ion battery production operations, adding new facilities and augmenting existing lines. The infusion, which Sony said is the first phase of investment in lithium-ion batteries the company is undertaking as part of efforts to reinforce core areas of its component and semiconductor business over the next three years, will be used to construct new production facilities and to enhance existing lines at Sony's lithium-ion battery production sites in Japan, the Motomiya Technology Center and Tochigi Technology Center of Sony Energy Device Corp. Sony said it is making the investment in response to the growing demand for lithium-ion batteries and that the new production facilities will focus on electrodes, battery cell production lines, and charge and discharge equipment, among other technologies. Sony further reminded its expanding lithium-ion battery production in Singapore and China, and said that in total its monthly production capacity will increase from the current level of 41 million cells per month to 74 million cells in 2010. Sony's $369 million investment will start in its current fiscal year and continue through the second half of its fiscal year 2010. Sony's fiscal Q1 2008 concluded in June. Meanwhile, Matsushita Electric Industrial Co recently committed $923 million (100 billion yen) to build a plant in Osaka, Japan, that is expected to bring its cell production to about 75 million a month from its current 25 million cells per month. Sanyo Electric Co has also reportedly announced plans to invest, promising $1.15 billion (125 billion yen) to develop its rechargeable-batteries business over the next three years. That investment is expected to increase cell output to 90 million per month from Sanyo's current 70 million cells per month. All three of the Japan-based companies last year suffered from loses brought on by their battery operations. Sony-made lithium-

"The rapid growth in urban population will be directly proportional to the volume of wastewater discharge. This will result in a strong and immediate demand for wastewater treatment, which will, in turn, adopt assistance from emerging technologies such as white biotechnology."