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California, New York and Washington are  three states, with 30 other cities in the U.S., and 100 large businesses, forming the U.S. Climate Alliance, saying they will  follow the Paris agreement on climate change. Former Mayor Bloomberg of New York City is organizing the effort, and he says in the U.S. it is cities, states and businesses that actually do the work of reducing emissions, not the federal government. Bloomberg said: "The fact of the matter is Americans don't need Washington to meet our Paris commitment." Governor Jerry Brown of California says the response will be for California and other states to set even bolder standards for reducing emissions.

LyrArc Article Gist
In this audio BBC Witness History talks with Shuji Nakamura, the inventor of the LED lightbulb in 1992.  Nakamura shows the resilience and stubborn persistence against the odds that has given the world an extraordinary invention. The LED bulb does great things for climate change action because for example Califonria uses 35% of its electricity for lighting. The LED bulb cuts this in half and this means many coal fired power plants are not needed. In India, Indonesia and China this means lighting for about 3 billion people, with lighting for children studying in remote parts of India and China, and in Africa and Latin America. Nakamura took an unconventional route. He did his PhD in Japan not by going to school which is allowed in Japan, but by writing a paper on White LED development. He made a single minded focus on this goal. Nakamura says it made him angry that no one wanted to try new ideas and he persisted for years of research. At the time GaN research was done by less than one percent of researchers. Nakamura decided to try the path less trodden and by 1992 developed a blue light emitting LED bulb. Add phospor particles and blue becomes bright white LED. ...

LyrArc Article Gist
Awareness about climate change is increasing. A poll in 2017 shows 61% of people in 38 countries seeing it as a big threat. Only terrorists inspired bigger fear. Even with the U.S. withdrawal from the climate change agreement many cities and states in the U.S. including California and New York are committed to the goals set in the Paris Accords. China is making a shift away from coal and fossil fuels. Yet the huge demands in Asia, particularly India as it shifts from a rural to an urbanized economy, mean that the shift away from fossil fuels is going to be very difficult. In the last decade 2006-2016 energy demand in Asia increased by 40%, according to the Economist, oil and coal use increased by about 3% a year and natural gas at 5.2% a year. Solar energy and wind power use is increasing and solar becoming cost efficient. Yet Asia still depends on fossil fuels. Even the use of electric cars in China as it pushes for higher numbers of electric vehicles means use of energy coming from a electricity grid powered two thirds by coal, producing more carbon dioxide than some very efficient gasoline driven car models. There are short term costs in the shift from coal but this comes with a better cleaner air demanded by urban residents, and less costs in health. In certain countries like India the costs are to be balanced with the need to tackle rural poverty.   ...