glaciers Archives - DOES GOD EXIST? TODAY

May 11, 2023May 10, 2023

Geological History Lessons

One of my favorite places on Earth is northern Michigan. As a child, I spent many summers on Lake Michigammi in the upper peninsula and grew to love the land of birches and pines. We can learn from the geological history lessons of northern Michigan.

Returning to this area over 70 years later has been a shock. When I was a kid, the people made a living harvesting and using the trees to make wood for construction purposes and to make paper. That industry still exists, but tourism and the construction of elaborate homes have replaced the trees as the basis of the northern Michigan economy. People have been buying large plots of land, building huge houses, and calling their property a “forest preserve.” Unfortunately, this practice includes the shoreline of Lake Michigan, Lake Huron, and the many inland lakes, limiting the general public’s access to this water wonderland.

Michigan’s state rock is the Petoskey stone, a beautiful coral often used to make attractive jewelry. The interesting thing about the Petoskey stone is that it is a tropical coral that only grows in warm water. Obviously, there has been a change in the climate because Michigan is not a tropical paradise. In our time of concern about climate change, we find the geological history lessons of northern Michigan indicating that Earth’s climate has changed in the past.

Another lesson from northern Michigan is the action of ice over time. Everywhere you look, you see huge rocks weighing many tons that could not have been placed by running water. These rocks come from many places and are all different. As a public school earth science teacher in South Bend, Indiana, I would take my students to the local gravel pit to hunt for unusual rocks. One student found a jasper conglomerate from Bruce Mines in Ontario. It had glacial groves and was hundreds of miles from its origin. We also found pieces of raw copper from outcrops in northern Michigan. One student found a diamond from an unknown Klondike area somewhere to the north. The geological history lessons we learn from the enormous rocks, the sand, and the many lakes is that, at one time, glaciers covered the area.

So how much time did these climate changes take? Knowing the geological history has been essential for oil drilling, coal and copper mining, and agriculture in Michigan. These things were part of how God prepared planet Earth for human habitation. Some religious people have tried to explain these things by Noah’s flood, but most ignore any attempt to explain the method and just say, “God did it.” That avoids the question of how and when.

Genesis 1:1 is undated and untimed, and the Genesis account uses the Hebrew words “bara,” meaning to create, and “asah,” meaning to make. Creating from nothing (bara) is used in verse 1, where it applies to space, time, and matter/energy. It is used again in verse 21 for the creation of the first life and in verse 27 for the creation of the first humans. Making (asah) refers to taking what was created and changing it. It is used in verses 7, 16, and 25. Chapter 2 verse 3 summarizes what God had done by using both bara and asah.

The geological history lessons of northern Michigan show us God taking what He had created and molding the Earth to prepare it for human habitation. As we understand more of what God has done, it becomes evident that all we see around us is the work of an intelligent Creator who cares about His creation and the humans He created in His image.

November 28, 2022November 17, 2022

Reading the Rocks in Wisconsin Dells

We have just enjoyed a return visit to the Wisconsin Dells. I say a “return visit” because, in the army, I was stationed at Camp McCoy near Sparta, Wisconsin. The closest place to go for an escape from military rigor was the Dells. Later, when I was in a National Science Foundation teacher training seminar, we spent a day at the Dells learning about the area’s geological history. I have been to the Dells nearly a dozen times and watched it change from a primitive camping area to a tourist water wonderland. As a geologist, I enjoy reading the rocks in Wisconsin Dells.

The Dells area is geologically interesting because the glaciers did something unusual there. For reasons still debated by geologists, glaciers that covered all of Wisconsin went around the Dells area. That left a very different geology compared to the rest of the state. Where we live in Michigan, glaciers dominated the whole state. Our house sits on a glacial moraine where glaciers dumped sand and gravel as they moved south.

In our gravel pits, we find rocks that came from hundreds of miles north of us. When I took my earth science students on field trips to area gravel pits, they found pieces of copper from the upper peninsula and Jasper conglomerate from southern Ontario. There is no exposed bedrock in southern Michigan, only sand, gravel, and clay left by the glaciers. Hundreds of pothole lakes and ponds cover the area, making it home to a variety of wildlife not abundant in Wisconsin. Farming in our area involves fruits and berries that are rare in Wisconsin.

Reading the rocks in Wisconsin Dells tells us a whole different story with exposed sedimentary bedrock and very little sand and gravel. The area’s rivers are very different, with large pillars and buttes that were spared by the glacial ice, and very few ponds. The whole ecological area of the Dells differs from the surrounding part of the state, and the varied ecology provides different natural resources. For example, the grasses that grow in a place like the Dells provide grains not as easily grown in glaciated areas.

Reading the rocks in Wisconsin Dells tells us that God has provided radically different ecological systems for our benefit. If all areas of the planet were the same, that would limit the available resources. The wisdom of having multiple agents to prepare different soils, different amounts of water, and different mixing of minerals reminds us of the message of Proverbs 8:22-31. That passage personifies Wisdom as being there when God created all these things. Learning to read Earth’s geological history shows us the methods God used to prepare this planet for human habitation. How blessed we are to travel and see places like Wisconsin Dells and learn of God’s wisdom, love, power, and patience in all He does.

February 11, 2022February 8, 2022

Changing Climate and the Human Response

There is no question that we are experiencing a rapidly changing climate. The data is massive and comes from many places on Earth. There hasn’t been much of a change here in Michigan so far. We have had a very typical winter at the time of this writing. However, in places like Alaska, the changes have been very pronounced. Many areas around the globe have witnessed changes not seen before in modern times.

We must understand that there have been many periods of changing climate throughout Earth’s history. At one time, glaciers covered a significant part of North America, giving undeniable evidence of a frigid climate. Around 12,000 years ago, there was a cold period scientists call the “Younger Dryas.” Many large animals went extinct during that climate change. When dinosaurs roamed the Earth, the climate was very different from today. Not only was it warmer, but the oxygen level was higher.

The point is that changing climate is not new. Our planet is a dynamic place, and climate change is part of its history. The issue is how much humans contribute to climate change and whether it will have disastrous consequences for us. As the planet warms, the thawing of glaciers and polar ice releases water into the ocean. This means we have to prepare for weather changes and a rise in sea level.

Some people will use the changes to deny God’s existence. Others will blame God or claim that He is using climate change as a weapon to afflict us for rejecting HIm. Instead, we suggest that God has allowed us to understand how the creation works and expects us to use that knowledge to prepare for the future.

Perhaps as humans battle with the changing climate, it will prevent the nonsense of humans battling other humans. God won’t force solutions on us, but He has given us the tools we need to live successfully on this planet.

April 23, 2020April 22, 2020

Michigan Fruit Trees and Global Warming

There are all kinds of evidence that we are in a period of global warming. Many of the examples don’t have so much to do with temperature as with heat. Glaciers, for instance, stay pretty much at the same temperature under the surface. But ice requires 80 calories of heat per gram to melt, without changing the temperature. You can see that when you put ice cubes in your tea. You can also see the effect of global warming on Michigan fruit trees.

We live in an area rich in fruit-growing with apples, peaches, pears, cherries, grapes, and blueberries being major cash crops. My friends who make their living with Michigan fruit trees are very upset with the current weather cycle because it has not been cold enough. Fruit trees require time and temperature to know when to blossom and when not to. They do this by a sophisticated design system. Most fruit trees need a minimum of 250 hours of temperatures between 35 and 50 degrees Fahrenheit (2 to 10 degrees Celsius), and some require up to 1000 hours. Temperatures below freezing don’t count.

The “chilling hours” are sensed by the buds on the trees, not the roots. The wisdom in this system is obvious. Michigan winters usually have many days when the temperature goes below 10 degrees C, but there are also those rare days when the temperature gets very warm. This past winter, we had fewer than normal hours in the required temperature range. The buds have not gotten enough chilling to tell them to open. If they didn’t have the built-in time requirement, you can understand what would happen. The first time the temperature dipped below 10 degrees followed by a warm day, the buds would open and blossom only to be killed by the next cold snap.

Trees that are native in southern latitudes don’t bear fruit well when they are moved north. God has suited plants to different climates as well as other environmental factors. Orchards are found near bodies of water for several reasons. One of them is the tempering effect the water has on the air temperature. The presence of Lake Michigan provides a heat sink for our Michigan fruit trees that is as important as the moisture itself. The Psalmist seems to have had some idea of this when he compares a righteous person to a tree: “Blessed is the man who does not walk in the counsel of the wicked … He is like a tree planted by streams of water, which yields its fruit in season” (Psalms 1:1-3).

My fruit-growing friends have learned to understand and work with God’s design for their trees, but sometimes weather anomalies can frustrate their best efforts.