This blog site began focused on renewable energy leading to a sustainable environment.  So almost weekly I return to this subject.  Today, I will summarize  ENERGY MATTERS , soundbite summaries from the American Energy Society: Some info of interest. Of historical note, between 1086 and 1330, the windmill was introduced to Europe from Iran.  Other innovations during this period included plowing with horses, wool spinning wheels, compasses and eyeglasses.  Then came the Black Death. The most productive mining region in the world is Western Australia, with Saskatchewan in Canada at #2, Nevada #3 ( was #1 in 2020 ), Alaska #4 and Arizona #5. Texas is the top U.S. state in clean energy development.  In megawatts: The total number of oil and natural gas rigs in the U.S. is 689, compared to 432 a year ago. Texas  342 Oklahoma  50 North Dakota  33 Wyoming  16 Colorado  15 Ohio  12 The top wind energy countries as a percentage of total electricity produced: #1  Denmark ( 48% of total electrici