The State of the Planet: Summer Heat 2026

Wherever you live in the world, the question is no longer whether climate change is making the earth hotter. The question is: What does a hotter planet actually look like?

The summer of 2026 is giving us some sobering answers.

Around the world, we have seen record temperatures, deadly heat waves, stressed electrical grids, shrinking rivers, increased wildfire danger, and growing threats to agriculture and human health. What we are experiencing is not simply a collection of isolated hot days. It is a global pattern.

Scientists have documented increasing frequency, duration, and intensity of extreme heat events. One of the atmospheric conditions contributing to these events is the heat dome—a persistent area of high pressure that traps hot air over a region for days or even weeks. A heat wave is what we experience on the ground; a heat dome is the atmospheric condition that keeps the faucet of extreme heat turned on.

And the consequences are increasingly difficult to ignore.

Europe: When Heat Becomes a Matter of Life and Death

Europe has experienced extraordinary heat this summer. During June, Western Europe was roughly 6 to 7 degrees Fahrenheit warmer, on average, than the climate experienced between 1961 and 1990.

That is not simply the difference between a cool day and a hot day. It represents a dramatic shift in the average temperature of an entire region.

The human consequences have been devastating. European mortality monitoring has estimated more than 10,000 excess deaths during the heat period, with more than 9,000 among people 65 and older. Heat does not always appear on a death certificate as the cause of death. It can contribute to heart attacks, strokes, respiratory illness, and kidney failure.

But the consequences extend beyond human health.

Europe's rivers are also suffering. The Danube and Rhine are critical transportation arteries, carrying enormous quantities of goods throughout Europe. Low water levels mean barges cannot carry full loads, transportation becomes more expensive, and industries that depend upon these waterways are disrupted.

Heat does not just make the air hotter. It changes the availability of water.

A hotter planet affects entire systems—from rivers and farms to food prices and ultimately to consumers.

America: Heat Tests Our Systems

The United States is experiencing the same basic pattern. The average high temperature across the contiguous United States in July 2026 was 2.9 degrees Fahrenheit above the historic norm—the fifth-highest anomaly since 1961.

The heat is testing our systems, especially our electrical grids and water supplies.

Hotter temperatures mean more air conditioners running, longer periods of peak electricity demand, greater strain on transmission lines, and higher risks of localized outages.

Texas provides an interesting example. During the brutal heat of July, electricity demand reached its highest level ever. Yet the grid held. One reason is that Texas has dramatically increased its solar generation, wind power, and battery storage. Solar energy is especially valuable during extreme heat because solar panels are producing electricity when air-conditioning demand is at its highest.

That is adaptation. It demonstrates that investment in generation, storage, and transmission can make our systems more resilient.

But water presents a much more difficult challenge.

The Colorado River supplies water to roughly 40 million people and irrigates millions of acres of farmland. Yet warmer temperatures are increasing evaporation, melting snow earlier, and reducing the amount of water that ultimately reaches reservoirs.

Lake Mead and Lake Powell—essentially the West's water savings accounts—are dangerously low.

For generations, we assumed that winter snow would replenish these reservoirs. That assumption is no longer holding.

Asia: Heat in the World's Great Cities

Across Asia, extreme heat is creating another challenge, particularly in its enormous cities.

South Korea experienced its highest temperature ever recorded this summer: 108.5 degrees Fahrenheit in Yangsan. Thousands of people have been treated for heat-related illnesses, and heat-related deaths have been reported.

Cities make the problem worse through what scientists call the urban heat island effect. Asphalt, concrete, brick, steel, and rooftops absorb heat during the day and release it slowly at night. Cities can remain dramatically warmer than surrounding rural areas even after the sun goes down.

Imagine living on the twentieth floor of a concrete apartment building in Seoul. After a day above 100 degrees, the sun sets, but the streets, sidewalks, rooftops, and buildings continue radiating heat. The temperature remains in the 80s. Your air conditioner runs through the night, your electric bill rises, and your body never fully recovers from the day's heat.

That is increasingly becoming the reality for millions of people.

What Does a Hotter Planet Mean?

A hotter planet is a story. The impact is the real story.

Higher temperatures mean greater risks to human health. They mean more evaporation, drier soils, declining river flows, agricultural stress, and eventually higher food prices. They mean greater demands on electrical grids.

The summer of 2026 is giving us a glimpse of what a warmer planet looks like—from the record heat of Europe, to wildfires and water challenges in the American West, to deadly heat affecting cities across Asia.

The faithful response is not fear or despair, but wisdom and courage.

We are called to reduce the causes of climate change, to protect the most vulnerable among us, and to build communities that are prepared for the challenges ahead.

Caring for creation is not simply an environmental responsibility; it is an expression of our faithfulness to the Creator—no matter how hot it gets.