First Autumn Plunge

The first frost and freeze warnings of the season stretch across the Northern Plains this morning.  Though not especially early in that region, the autumn chill is getting plenty of attention after our long, hot summer.  Here along the Front Range, we awoke to an overnight low of 47 degrees F.

Some might suggest that this early September plunge offers more evidence that global warming is but a liberal obsession.  But a warming climate will not eliminate the seasons and, in fact, might make such "unseasonable" incursions more likely due to an energized jet stream.

Our recovery in Metro Denver will be rapid and we expect afternoon highs in the low 80s F for the next week.  Of course, the longer nights, dry air and high elevation will allow overnight lows to dip into the 50s F but our brief, more intense chill is already ending. 

Conservation & Extinction

Ignoring the central message of the Jurassic Park films, some "enterprising" scientists are focusing on efforts to bring back extinct species.  In my opinion, this is an unwise and inappropriate endeavor, whether the extinction occurred at the hands of humans or not.

Once we gave up our nomadic lifestyle and turned to cultivation and domestication (both about 10,000 years ago), humans have had a significant effect on the health of other animal populations.  Of course, this negative impact greatly increased during the Industrial and Technologic Revolutions as pollution and widespread development destroyed ecosystems.  Rather than reversing extinction, a natural component of evolution, we should concentrate on protecting those species that still exist; reducing our population, cutting back on personal consumption, greatly limiting pollution and protecting natural habitat are the primary tools.  Nature will heal herself if we get out of her way.

Then again, we have an American President and Administration who are anti-science; they deny climate change, are cutting back (if not eliminating) federal support for green energy industries and even talk of renewing the use of coal in power plants.  Unless we reverse the political climate, the extinction of our own species will be greatly accelerated.

Ignoring Anti-Science Policies

Having devoted decades to scientific research in the development of their products and services, it seems unlikely that American corporations will derail their agenda in response to the anti-science policies of the Trump Administration.  Expensive, long-term commitments to medical research, environmental science, technologic advancement, pollution control and, most recently, climate science, cannot be derailed by relatively brief swings in the political environment.

While this is reassuring, the anti-science rhetoric of Trump's stooges will certainly have an effect on the uneducated public, resulting in unnecessary health complications, a reduced commitment to protecting our natural environment and to excessive personal consumption.

Of course, while corporations can ignore anti-science policies, none of us can or should ignore the Administration's attacks on our Democracy, on our personal freedoms and on social justice.  Our response to those threats may require a revolution.

 

An Era of Flash Flooding

It appears that we have entered an era of flash flooding.  Almost every day, at least one (and usually several) such events occur in this country, courtesy of torrential rain from training thunderstorms.

Most recently, the flooding has occurred across the Northern Plains and Upper Midwest but no region east of the Rockies has been spared.  Following the rim of hot, high pressure domes, the storms, which already carry saturated air, feed off this heat energy.

No doubt, global warming is playing a major role in the development of these destructive events.  Though denied by the Trump Administration, climate change will produce such weather patterns for decades or centuries to come; both cities and small towns must assess their risk and prepare for the inevitable. 

Monsoon Deficiency

Returning to our Littleton, Colorado, farm, it is clear that the Southwest Monsoon has not yet kicked in with sufficient vigor.  The "lawns" and pastures have browned and the shrubs appear desperate for a good soaking.

Indeed, the Monsoon flow of moisture is late at best; perhaps it will not arrive at all.  Having owned the property for thirty-five years, we have certainly experienced good and bad monsoon seasons.  It remains to be seen how global warming will affect this annual weather phenomenon; it could go either way.

Since the Monsoon generally peaks from mid August to early September in this region, it is too early to know if it will be a bust for 2025.  If so, we may have to wait for October snow, a bit late for our thirsty vegetation.  

Flood Warnings vs. Building Codes

Following a month of deadly flash-floods across the country, there is a good deal of talk about improving early warning systems.  While this is certainly appropriate in areas that have not yet been destroyed by flooding, it is inadequate when it comes to saving lives in the future.

We must stop building on floodplains, especially in areas that are repeatedly prone to destructive and deadly flooding.  The Guadalupe River valley in Central Texas offers a prime example; known as Flash-Flood Alley for many years, it finally demonstrated the risk of rebuilding along its channel on July 4 of this year.

Life-saving policies must include common sense building codes.  Nature's power cannot be confined by dams and seawalls.  We need to give her space, especially as our warming climate greatly increases the risk of both coastal and inland flooding. 

EPA Chief ridicules Climate Change

King Trump's EPA Chief, Lee Zeldin, plans to "put a dagger through the heart of the climate change myth."  This disturbing admission is not surprising since he has already rolled back most environmental protection programs during his first six months of service.

In line with most of the King's Court, Zeldin is not interested in science.  He joins those who have cut back funding for medical research, weather forecasting, education, space exploration and other vital programs.  These incompetent stooges care only about serving our King and carrying out his wishes.

One wonders if Secretary Zeldin has grandchildren.  Does he not care about their future welfare or will it be enough to leave them a handsome inheritance?  Their home planet be damned.

  

Freedom and the Young

Having come of age during the Civil Rights Movement and the Vietnam War Protests, I know that younger generations of Americans were instrumental to the success of those political upheavals.  Today, as King Trump and his loyal Congress threaten personal rights and the welfare of our planet, it will be up to young Americans to turn the tide.

Non-violent protests, boycotts, massive voter turnouts and relatively young, energetic candidates must all play a role.  Personal freedoms, global cooperation, conservation and the threats of climate change seem to be the primary issues but the overall effort must be directed at the protection of our Democracy and Constitution.

The widespread protests on No Kings Day were heartening but the commitment to dislodge Trump and his loyalists cannot fade.  Otherwise, we are headed toward a dictatorship that could alter the fabric of life in America for decades to come.  It will be today's younger generations that have the most to lose. 

Tropical Storm Chantal

Having formed off the Georgia coast, Tropical Storm Chantal is expected to make landfall in South Carolina by tomorrow morning.  Since it is not a hurricane, it may not be taken as seriously as it should.

Heavy rain is expected to fall across coastal and near-inland areas of the Carolinas and coastal flooding from wind-driven waves and storm surge is forecast for North Carolina.  The risk of inland flooding may also extend into the Mid-Atlantic Region.

As we have seen with this weekend's tragic flooding in central Texas, it is increasingly difficult to predict regional rainfall.  Established models do not apply as our climate warms and those who minimize the potential effects of Chantal do so at their own risk. 

Flooding in Central Texas

An isolated and stationary storm system has brought torrential rain to Central Texas overnight.  The Hill Country and adjacent areas have experienced extensive flooding and the Guadelupe River Valley has been especially hard hit.  Unfortunately, the system is not expected to dissipate until this evening.

Though not associated with a potent storm front, this low pressure center has drawn in moisture from the humid air that surrounds it.  And, unlike tropical storms and hurricanes, strong winds and tornados have not been a feature.

Rather, this destructive storm system is just the latest evidence that our warming climate will produce saturated air, augmenting either rainfall or snowfall, depending on the season and location.  Perhaps this event will get Governor Abbott's attention, a Trump devotee and climate change denier.

Update 7/11/25: At least 129 persons have been killed and at least 150 remain missing. 

Summer Slowdown

Ask naturalists to rank the seasons by their level of interest and most would place summer last on the list.  Of course, there are exceptions, especially for those focused on insects, amphibians and reptiles, and, to be honest, each season offers its special rewards when it comes to flora and weather.

But summer induces a general slowdown for most species of wildlife as the midday heat suppresses activity.  The mating and nesting seasons are over, there are no migrants passing through and the abundance of food diminishes the need to forage any significant distance.  Furthermore, many birds and mammals limit their excursions to the early morning and evening hours.

Late summer does bring an influx of avian wanderers and the first substantial wave of migrants (especially shorebirds) but that seems far off as we endure the summer heat.  Facing a longer summer season as our climate warms, we best learn to enjoy it. 

Heat & Energy

During the ongoing heat wave, which has affected most States east of the Rockies, there has been a great deal of political chatter.  Most Democrats, concerned about the threats imposed by climate change, point to the extreme weather as strong evidence that we must enact policies to mitigate global warming.

Most Republicans, on the other hand, place emphasis on the stress to our energy grid, arguing for more natural gas production and even suggesting that coal-fueled plants be fired up.  They prefer to ignore climate change and are inclined to belittle the value of green energy sources.  Indeed, the Trump Administration has cut Federal subsidies for electric vehicles, wind farms and solar energy production.

It is an ecologic vs. economic political confrontation.  Ample evidence indicates that the burning of fossil fuels is responsible for global warming and its many complications.  To ignore that fact and to focus solely on increasing energy production via their use is a disturbing and potentially disastrous choice. 

Through the Heat Dome

A broad atmospheric ridge extends across most of the Central U.S., allowing hot air to stream northward.  In addition, within this high pressure dome, the air is sinking, further enhancing its heat.  On the positive side, thunderstorms cannot develop within the dome and travelers on the Great Plains need not fear the severe weather that recently pummeled the region.

Leaving Denver this morning, the temperature was in the mid 70s F; by the time we were thirty miles east of the city, it was 90 degrees F.  The temperature gradually rose as we headed east, buffeted by strong, southwesterly winds.  We finally hit 100 degrees F in Quinter, Kansas, and will spend the night in Hays.

As we continue eastward tomorrow, the heat dome will expand in concert.  By the time we reach Missouri, it will stretch from the Rockies to the Midwest and will encompass the Eastern States by later in the weekend.  This first, major heat wave of the summer is but a taste of a very warm future throughout our country and across the globe.  Happy Summer Solstice tomorrow!  

Oakmont and its Trees

When it was first developed, in 1904, Oakmont Country Club, in western Pennsylvania (the site of this week's U.S. Open) was known for its open terrain, resembling the courses one sees in Great Britain.  Over the years, trees were added to bring the course in line with the classic American style.

Recently, as they approached the Open, officials of the Club decided to take the course back to its original layout.  Depending on the source, 12,600 to 15,000 trees were removed.

A fan of golf but also a dedicated conservationist, I was dismayed by the news.  One cannot overlook the fact that trees add to the ecologic diversity of any landscape; furthermore, and most importantly, they play a significant role as carbon sinks and their loss is especially disturbing as we attempt to mitigate climate change.  This is not 1904 and, in my opinion, the decision to bring back the old Oakmont was short-sighted at best. 

Front Range Guessing Game

Throughout June and July, thunderstorms bubble up above the Front Range mountains by late morning.  Where they will head is anyone's guess.

Some merge into impressive storms while others shrink as they drift eastward, producing but a tail of virga beneath their residual clouds.  The direction that the storms take will depend on upper level winds, adding to the uncertainty of who will benefit from their nourishing rains.  Since the larger storms often bring damaging winds and hail, urban corridor residents hope to be in the path of less intense downpours.  In the end, on any given day, most areas will remain dry.

By August, the Southwest Monsoon has generally moved up from the Four Corners region and the rain events are more generalized and usually less potent.  Of course, this typical summer pattern will likely change as our climate warms; whether we receive more or less atmospheric moisture remains to be seen.  

Smoke Signals

Smoke from the Canadian wildfires, having drifted south through the Midwest over the past few days, has now reached the Southeastern States.  More than reducing visibility, the smoke has produced poor air quality which is of special concern to those who work outdoors or who have chronic lung disease.

While there is nothing positive about this invasion of smoke from a health point of view, it does call attention to the distant devastation in Canada, an environmental catastrophe that might otherwise go unnoticed in the U.S.  Furthermore, it is a clear signal that ecosystems across the globe, including man-made habitats, are interconnected.  We cannot ignore the health of any environment (marine or terrestrial) without suffering the consequences.

Those who deny climate change need to personally experience its effects, whether it be via floods, hurricanes, drought or wildfires to give them pause.  Hopefully, this invasion of smoke will send a clear message and serve to change their misguided attitude. 

The Peak of Verdancy

Across central latitudes of the Northern Hemisphere, early June brings the peak of verdancy.  Fueled by moist soil and the lengthening period of sunlight, greenery abounds.  In some areas, certain trees have just recently leafed out and prolonged episodes of heat have not yet materialized.

In concert, all forms of wildlife are taking advantage of the lush growth and, in the case of birds and mammals, adults are busily attending to their offspring.  Consequently, it is a great time for birders and other wildlife enthusiasts to visit our parks and nature preserves.

By later in the month, the intense sun will begin to take a toll and plant life will rely on roving bands of summer thunderstorms for vital moisture.  Adaptation to heat will then become the focus of plants, wild creatures and humans alike.  So enjoy the verdancy of late spring while it lasts; climate change may soon alter both the nature and the timing of this seasonal transition.

Western Heat

An atmospheric ridge, stretching from the valleys of California to the Wasatch Front, will allow heat to stream northward today.  Many areas will experience afternoon highs above 100 degrees F, breaking records for the date.

Since most areas affected by the heat lie in desert areas, this event is easy to ignore.  But the early date and the extreme conditions are just another sign that climate change is altering the seasonal transitions that we have long come to anticipate.

Fortunately, the extreme heat will be short-lived as a Pacific front come ashore with its rain and cooler air.  Then again, a long, hot summer surely lies ahead. 

Mountain Living

While we humans evolved in the Rift Valley of East Africa, our species has long been enamored with mountainous terrain.  Camps, cabins, caves and towns in the mountains offered beautiful scenery, plenty of clean water and a diverse variety of wild game.  Even today their appeal persists though modern life diminishes the need to hunt for food.

As our climate warms, however, the risks of mountain living have increased significantly.  Prolonged drought augments the incidence of forest fires while, as we have seen in Asheville, North Carolina, and eastern Kentucky, torrential rains over mountainous topography can cause tragic flooding.  Just this week, a mountain glacier fractured in Switzerland, sending a slurry of ice, water, mud and vegetation downhill, burying a small village; fortunately, an advanced warning saved most of the residents.

Mountains will always appeal to humans but living on or beneath them, like living on barrier islands or on major river floodplains, will become increasingly risky and expensive as climate change remolds the planet. 

Nature under Assault

For the remainder of King Trump's term, he and those who support him will assault nature in a variety of ways.  The destruction of natural habitat, the reduction or elimination of pollution controls and an inclination to ridicule (if not totally ignore) efforts to mitigate climate change will be among the more egregious.

Those of us who know that the welfare of mankind is directly tied to the health of natural ecosystems must do what we can to combat this assault.  Donating to national and local conservation organizations is among the more effective commitments; a few of these are listed in the right hand column of this blog.  Of course, voting out Conservative Republicans and climate change deniers in next year's midterms will serve to reign in Trump's anti-environmental policies.

Meanwhile, we must do what we can to minimize our own impact on the natural world.  Allowing our own property to naturalize, eliminating our reliance on pesticides and herbicides, limiting our use of gas and electric power, recycling what we can and reducing our personal consumption are among such measures.  Complaining without acting is not an option.