Another record hot day for the Australian continent (BBC News). “The nation endured its hottest-ever day on Tuesday, but that record was smashed again on Wednesday – which saw an average maximum of 41.9C (107.4F). Tuesday’s 40.9C had eclipsed the previous record of 40.3C, set in 2013.” One city on the southern coast reported a high of 49,9C, or 122F. Thankfully, the complex of conditions causing this heat will soon change for the better, but it is still early in the summer season.
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The internet is a huge contributor to carbon emissions, and growing rapidly (The New Republic). The author of this fine article has done his homework, and sees all sorts of possibilities for how things will change. “It is the largest coal-fired machine on the entire planet, accounting for 10 percent of global electricity demand. And the internet’s climate impact is only going to get worse: Around half of the world has yet to log on—a presently disconnected population of more than three billion people eager to begin streaming videos and updating Facebook accounts. The internet’s cut of the world’s electricity demand will likely rise to 20 percent or more by 2030, at which point it will produce more carbon than any country except China, India, and the United States.” That kind of power demand growth in the near future is assumed to be too much for renewable energy to overcome, meaning cuts will somewhere be necessary.
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Meanwhile, the concrete industry is making real progress toward reducing its carbon footprint (CORDIS). A new kiln design “will allow all of the process CO2 emissions to be captured without significant energy or capital penalty.” The system “enables pure CO2 to be captured, in the case of limestone (CaCO3), as it is released during calcination to lime (CaO), as the furnace exhaust gases are kept separate.” The release of carbon cannot be avoided when making cement and must therefore be captured. Luckily, there are growing markets for pure CO2 that make it a valuable raw material.
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The shipping industry has new plans for reducing emissions, criticized as wholly inadequate (EcoWatch). The plan calls for replacing dirty bunker fuels with hydrogen or ammonia but much research must first be done that would take up to a decade before any effective changes got started. “The global shipping industry creates roughly three percent of the world’s carbon dioxide emissions…..Investing research to create zero-carbon ships is not a bad thing in itself, but it becomes suspiciously close to a delaying tactic if it is not accompanied by clear reduction targets.”
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The Plastics Pipeline: A Surge of New Production Is on the Way (Yale e360). The author, Beth Gardiner, is a veteran science journalist who has written a recent book about air pollution. Here she presents an overview of expansion plans in the petrochemical industry, its growth projections, and the many kinds of pollution problems that will be generated. “If even a quarter of these ethane cracking facilities are built, it’s locking us into a plastic future that is going to be hard to recover from.”
Carl