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The Great Salt Lake Is Disappearing | Earth Wise

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Utah’s Great Salt Lake is the largest saltwater lake in the western hemisphere.  According to data from the US Geological Survey, the surface water elevation of the Great Salt Lake has fallen to the lowest level since records began in the mid-1800s.  The average elevation is now 4,190 feet above sea level.   With this drop in water level, the surface area of the lake is little more than half of its historical size.  The lower water level has exposed about 700 square miles of previously submerged lakebed.

The lake now contains about a quarter of the volume of water that it did at its high point in 1987.  The precipitous drop in water is a result of water usage from the lake coupled with climate change-fueled drought.   Increased water demand is due to the rapidly growing population of metropolitan Salt Lake City.  Utah’s population is projected to increase by almost 50% by 2060.

The Great Salt Lake goes though seasonal cycles of water loss and replenishment.  Rain and snow generally refill its level.  However, because of the ongoing megadrought in the West, water evaporation and depletion continue to exceed the amount of water entering the lake.  The water levels are expected to further decrease until fall or early winter, when incoming water is expected to equal or exceed evaporation.

The decline of the Great Salt Lake is a serious threat to the economy, ecology, and people of northern Utah.  The lake generates snowpack, is a refuge for hundreds of migratory birds and other wildlife and generates millions of dollars in the economy through mineral extraction and tourism.

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Utah’s Great Salt Lake is disappearing

Photo, posted October 6, 2020, courtesy of Julie Girard via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

A Hot July | Earth Wise

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At the beginning of July, the National Oceanic and Atmospheric Administration’s monthly climate outlook predicted temperatures well above average across much of the United States.  The prediction was quite correct.  Beyond that, world-wide, there were multiple heat waves, especially in Europe and Asia, where there were thousands of heat-related deaths.  On July 19th, the United Kingdom had its hottest day ever reported with a temperature over 104 degrees.

In the U.S., a series of atmospheric high-pressure systems resulted in stagnant heat domes, which resulted in more than 150 million people living under heat warnings and advisories.  Nearly every part of the continental U.S. saw above-average temperatures.  There were record-breaking triple-digit highs in several states, sometimes persisting for days.

The south-central part of the country developed a ridge of high pressure that established a heat dome that acted like a lid, trapping hot air over that area.  The extreme heat persisted throughout the month, at times expanding to the Southwest, Upper Midwest, and Southeast.

In the second half of the month, the Great Plains experienced temperatures as high as 115 degrees.  Utah and Oklahoma both broke long-standing records for the most consecutive days on which temperatures exceeded 100 degrees.  Utah saw 16 straight days over 100.

In the Pacific Northwest temperatures reached 110 degrees in Dallasport, Washington, and 114 in Medford, Oregon.  In the Northeast, Newark, New Jersey saw a record-breaking five straight days over 100 degrees.

In Albany, New York, where the average daily high temperature is 82 degrees in July, there were 10 days in the 90s, with highs of 97 on three occasions.

July was a hot month indeed.

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A July of Extremes

Photo, posted July 10, 2022, courtesy of Dominic Alves via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Large Solar Projects In The U.S. | Earth Wise

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The United States now has over 108 gigawatts of total solar generating capacity, which is enough to power about 19 million homes.  There are more than 3 million solar installations across the country, the majority of which are residential systems.

The growth in solar power has been enormous over the past 13 years.  In 2008, the total solar capacity in the U.S. was 0.34 gigawatts.

In recent times, utility-scale solar installations have been on the rise.  At least 10 systems in excess of 100 megawatts have come online just in 2021.  These systems have been built in Georgia, Ohio, California, Texas, and Nevada.  Other large installations have come online in Virginia, Utah, Indiana, and Florida.  Overall, Texas has had the most new installations, followed by California and Florida.

The largest utility-scale solar project completed this year is the Eunice Solar Project in Andrew, Texas.  The 420-megawatt project is part of the Permian Energy Center which also features 40 megawatts of battery energy storage.

The pipeline for new utility-scale solar projects under construction includes more than 17 gigawatts, so there is strong continuing growth in the industry.

The Biden administration has proposed a blueprint for the nation to produce 45% of its electricity from solar power by 2050.  Currently, solar energy contributes about 4% of the country’s power.  Being able to produce almost half the country’s electricity from the sun by 2050 would require a vast transformation in technology and the energy industry.  Whether there is the political will and the wherewithal to achieve this remains to be seen.

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U.S. Solar Market Insight

Photo, posted March 7, 2019, courtesy of Hedgerow Inc via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

A Dangerous Fire Season | Earth Wise

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The western United States is entering the fire season under much worse drought conditions than last year.  Last year, 15,800 square miles burned in the U.S., mostly in the West.

The western U.S. is in the midst of a 20-year mega-drought.  Rainfall in the Rocky Mountains and farther west was the second lowest on record this April.  The soil in the western half of the country is the driest it has been since 1895.

The situation is particularly bad in California and the Southwest.  In March, less than a third of California was experiencing extreme or exceptional drought.  Now, 73% of the state is.  A year ago, a record-breaking fire season burned 4% of the state and, at that time, only 3% of California was in a state of extreme drought.

A year ago, no parts of Arizona, Nevada, or Utah were in extreme or exceptional drought.  Now, more than 90% of Utah, 86% of Arizona, and 75% of Nevada face severe drought conditions.  At this time last year, only 4% of New Mexico faced extreme drought but 77% does now.

These extreme drought conditions, which are believed to be linked to climate change, are causing increased tree mortality among many species, ranging from junipers in the Southwest even to drought-tolerant blue oaks in the San Francisco Bay Area.

Conditions are extremely ripe for a lot of forest fire this year.  Last year was a terrible year for wildfires in the West and we are heading into a fire season with much drier fuels than there were last year.  The risks of great damage from wildfires are higher than ever.

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US West Enters Fire Season Facing Extremely Dry Conditions

Photo, posted September 18, 2020, courtesy of USFS/National Interagency Fire Center via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Restoring Environmental Rules Will Take Time | Earth Wise

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Over the previous four years, the Trump administration weakened or rolled back more than 100 rules and regulations on air, water, public lands, endangered species, and climate change.  The Biden administration has vowed to review these changes and restore the environmental protections that were removed or weakened.

The process of restoring environmental protections generally fall into a few broad categories.  Some changes can happen by executive order.  The President can cancel individual fossil fuel infrastructure projects or reinstate federal protection of specific places.  On his first day in office, President Biden rescinded the construction permit for the Keystone XL pipeline.

The President is also expected to restore federal protection to the Bears Ears and Grand Staircase-Escalante national monuments in Utah, which the Trump administration opened up to mining, logging, and drilling.

However, it could take two years or more to restore Obama-era climate change regulations including limits on emissions, rules on industrial emissions of toxic pollutants such as mercury, and protections on wetlands and waterways.

Reinstating comprehensive regulations on air, water, and climate pollution will take years because the Trump administration, rather than eliminating rules entirely, often replaced them with weaker regulations.  Replacing the weak regulations cannot just happen by executive order.  The process involves scientific and economic analysis, and that takes time.

After four years of shrinking budget and shrinking staff, the Environmental Protection Agency has a lot of catching up to do and will need to prioritize its actions in order to deal with the most damaging consequences of the previous administration.

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Restoring Environmental Rules Rolled Back by Trump Could Take Years

Photo, posted September 25, 2012, courtesy of Tar Sands Blockade via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Widespread Drought | Earth Wise

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As the U.S. enters the last part of the summer, fully one-third of the country is experiencing at least a moderate level of drought.   Much of the West is reaching severe drought conditions and New England has been unusually dry and hot.  In total, over 50 million Americans are living in drought-affected areas.

According to the U.S. Drought Monitor program, more than 93% of Utah, Colorado, Nevada, and New Mexico are experiencing drought to some degree.  More than 60% of both Utah and Colorado are in severe drought.   More than three-quarters of Oregon, Arizona, and Wyoming are also in drought.  And most of these areas had no sign of drought this time last year.

Severe drought conditions result in stunted and browning crops, limited pasture yields, dust storms, reduced well water levels, and an increase in the number and severity of wildfires.

Warm air temperatures and minimal snowfall in spring set the stage for this summer’s drought conditions.  A ridge of high pressure over the northeastern Pacific Ocean pushed the jet stream farther north than usual.  And, once again, there has been a failure of the southwestern monsoon in Arizona and New Mexico and the Four Corners region.  Monsoon rains provide half of the year’s precipitation in many of those areas. 

Instead, there has been extreme heat in the region.  Phoenix has already smashed the record for the most days over 110oF in a calendar year (42 as of August 18), with five months to go.  Las Vegas hasn’t seen measurable rainfall since April, and Cedar City, Utah has recorded a record low of 0.05 inches of rain this summer.

Conditions are not expected to get better for a couple of months.

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A Third of the U.S. Faces Drought

Photo, posted May 7, 2014, courtesy of Tyler Bell via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Two Million Solar Installations

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Three years ago, we reported that the United States had installed its one millionth solar energy system, a feat that took 40 years to accomplish.  Recently, the Solar Energy Industries Association announced that there are now more than 2 million U.S. installations.

Analysts forecast that there will be 3 million installation in 2021 and 4 million in 2023.

California continues to lead the nation in installing solar power.  More than 50% of the first million installations were in that state and California accounted for 43% of the second million.  Its share is nevertheless slowly dropping with the growth of the residential solar sector that is rapidly diversifying across state markets.  Some places have seen extremely rapid growth.  In South Carolina, there were barely more than 1,000 cumulative installations in 2016; today, the state is home to more than 18,000 solar systems and expects to add 22,000 more over the next five years.

The five leading states in terms of number of solar installations are California, Arizona, New York, New Jersey, and Massachusetts.    Other states recently seeing rapid growth in solar installations are Texas, Utah, Florida, Rhode Island and Maryland.  Looking ahead, Illinois is forecast to grow from only 4,000 installations today to nearly 100,000 by 2024.  The top ten state markets apart from California expect to add nearly 750,000 installation over the next five years.

The United States is at least the third nation that is home to more than 2 million solar installations.  (Australia hit the milestone late least year and Japan actually topped 2 million in September 2014).

According to forecasts from analyst first Wood Mackenzie, by the year 2024, there will be on average one new solar installation every minute.

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The United States surpasses 2 million solar installations

Photo, posted January 11, 2012, courtesy of the Oregon Department of Transportation via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

National Parks Are Too Popular

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National Parks are often thought of as America’s natural cathedrals – serene places we visit to commune with nature and soak up its grandeur.   Millions of Americans and other people from around the world are drawn to these amazing places.  Unfortunately, it is now too many millions.

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The Great Salt Lake Is Shrinking

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Utah’s Great Salt Lake is the largest salt water lake in the Western Hemisphere and is the largest body of water in the United States after the five Great Lakes.  When the pioneers first arrived in the area back in the middle of the 19th century, the lake spread across about 1,600 square miles.   Now, the lake covers an area of only about 1,050 square miles, a reduction of about 35%.

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California Condors

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The California condor is the largest North American land bird with a wingspan of about 10 feet.  During the 20th century, poaching, habitat loss and lead poisoning reduced the vulture’s population to fewer than two dozen.   The U.S. government’s response was to round up every last one of them over a period of 5 years-  a total of 27 birds – for a last-ditch captive breeding program.  As a result, technically the species became extinct in the wild at that point in 1987.   Reintroduction into the wild did not begin until 1991.

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