Interesting Thursday Links

• The chart above is new electricity generation by fuel source over time in the US.
• The challenges ahead in battery research.  (I would be somewhat more optimistic - making some allowance that researchers emphasize problems as motivation for their research - and also that commercialization is not about solving the whole problem at once but rather finding a series of increasingly large niches that eventually scale to the whole market - but much of the post is very informative).
• Climate is Really Changing - nothing new but a nice concise summary from Tamino.
• Progression of obesity in OECD countries.
• What the US needs to do to balance the budget.
• Chinese PMIs continue to look weak.  This is consistent with the weak global trade data and oil supply that is not expanding.
• Build your own stonehenge.
• Balkans in drought too.