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US Supreme Court rules Clean Water Act covers groundwater pollution in Maui

Clean Water Act

The Supreme Court yesterday, in a 6-3 ruling on the Maui/Clean Water Act Case, held that discharges to “waters of the United States” (WOTUS) via groundwater are covered under the Clean Water Act “when there is a functional equivalent of a direct discharge.” The federal government must regulate groundwater pollutants that make their way into navigable waters such as oceans.


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US presidential candidates’ environmental report cards: the results

presidential candidates

Electrek compiled how three environmental and political groups — The Center for Biological Diversity Action Fund, Build a Movement 2020, and Greenpeace — grade the presidential candidates on environmental and climate-change issues.

As we previously wrote in Climate Crisis Weekly, The Yale Program on Climate Change Communication reported that among all registered voters, global warming is ranked fifth and environmental protection is ranked eighth as the “most important issue” when it comes to deciding who they’ll vote for.


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Massachusetts’ advanced energy leadership = 1600MW Solar & Wind + 600MW Storage

Massachusetts is taking aggressive steps toward cleaning electrical grid and in doing so is joining a select group of regions around the world. Of course Germany and California get all the headlines, but also deserving are Portugal, Scotland, Hawaii, Iceland, Costa Rica, Uruguay throwing down part of $285B worth in 2015. There are also the global giants China and India building massive amounts of infrastructure.
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Average Wh/mile readings from all over US show temperate warm climates excel, extremes lag

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In a new paper in the ACS journal Environmental Science & Technology, Tugce Yuksel and Jeremy Michalek at Carnegie Mellon University have shown the average energy usage per mile of electric cars across the US.  You’ll note that warm but temperate climates like the California Coast and the Deep South especially Florida fare the best. Very hot desert areas like Arizona don’t do well because of the energy required to cool off bith the batteries and cabin. The North does poorly because batteries lose power as weather gets cooler.  Below, a Nissan Leaf efficiency is graphed at different temperatures which illustrates this disparity more clearly. The optimum range for operation is between 45 and 82 degrees where the 300W/mile threshold is beaten.

This all translates to CO2 emissions obviously and with the West making their energy much cleaner, they produce about 1/3rd the CO2 emissions as the north Midwest which is basically one big coal plant. In fact, that area’s energy is so CO2 intensive that running an electric car there (assuming you don’t have your own solar/wind) rivals the CO2 emissions of a fuel efficient car like a Prius.

The big takeaway is that moving to electric cars isnt enough. The grid also needs to move to cleaner power like wind and solar.


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