It may not always be obvious to many of us how human and other causes thousands of miles away may effect conditions around the world. Today we have a rather obvious indicator. Smoke from forest fires in the NW US has blown into the area. It is enough that it can be smelled and it irritates many people's eyes including mine and my wife's.
The photos below indicate the reduction in visibility due to the smoke. The two photos were taken from roughly the same location. One on a nearly clear day and another an hour or so ago.
Clear Day earlier this summer below:
Today, August 30, 2015 with smoke.
I resized both images, but otherwise made no changes to them. Color, contrast, etc. are as they came from my camera. The trees are about 1/2 mile away and the buttes are probably about 4 or 5 miles away nearly straight north of Winner, SD. in Tripp County.
Of course, this part of the country has also had radioactive fallout from nuclear bomb tests in the air too, we just could not see that with our eyes or regular cameras.
Both indicate that human activity thousands of miles away can impact our local conditions. What the wind brings depends on direction from which it comes. Some days it is just stench from confinement hogs miles away or cattle lots miles away in another direction. Or in the spring, from a mile or so away from the Winner municipal sewer lagoon just north of Winner.
Note of Aug 31, 2015. Today was even smokier than yesterday. I guess this smoke covers multiple states.
*** Stay tuned even if your skies are pure blue and the air smells like roses--- Doug Wiken