Have you noticed that the weather seems a bit strange lately? In early 2019, many states in the U.S., from North Dakota to Louisiana, experienced unusual flooding that usually happens in spring. Then, a massive winter storm hit, bringing heavy snow and leaving people and animals stranded. This was followed by a severe tornado outbreak that caused destruction from Texas to Iowa. These extreme weather events are becoming more frequent and intense. So, what’s going on? Are these the effects of a warming planet?
Climate change is not just about unusual weather. It affects our food, water, health, economy, and even our favorite activities like sports and tourism. Scientists agree that our planet is getting warmer, and this is not something we can ignore. Thanks to advanced technology, like satellites, we have been able to gather detailed climate data since the 1950s. All the evidence points to one conclusion: our planet is warming, from the air we breathe to the oceans.
Thousands of weather stations around the world keep track of temperature, rainfall, and wind. The data shows that 2018 was the fourth warmest year ever recorded, following 2015, 2016, and 2017. In fact, nine of the ten warmest years since 1880 have happened since 2005. This warming trend is affecting weather patterns, leading to more intense heat waves and extreme rainfall events worldwide.
Back in 1859, an Irish scientist named John Tyndall discovered that gases like carbon dioxide and methane trap heat in the atmosphere. Later, a Swedish scientist, Svante Arrhenius, predicted that burning fossil fuels would increase these gases, leading to more warming. They were right, and now we see the effects of this “greenhouse effect” on our climate.
Some people argue that climate has changed naturally in the past, but the changes we’re seeing now are much more extreme. If the planet warms by just a few degrees Celsius, it could drastically change our climate, similar to when dinosaurs roamed the Earth. This would have huge impacts on ecosystems and human life.
To understand how climate has changed over time, scientists use clues from nature, like tree rings, ocean sediments, and ice cores. These clues show that we are experiencing unprecedented warming, mainly due to greenhouse gas emissions. For example, tree rings can tell us about hot and cold periods over centuries, while ice cores contain bubbles of ancient air.
Natural factors like Earth’s orbit, solar cycles, and volcanic eruptions have influenced climate in the past. However, a clear pattern emerges: lower carbon dioxide levels mean cooler temperatures, and higher levels mean warmer temperatures. If we don’t control our emissions, we can expect more extreme weather, rising sea levels, and stronger storms.
Climate change affects different regions in various ways. In the western U.S., droughts are getting worse, increasing the risk of wildfires and affecting air quality. In the Midwest, heavy rainfall is disrupting farming. In the South, heat waves are becoming more intense and lasting longer.
NASA and other agencies are keeping a close eye on these changes. NASA has 16 satellites collecting data on climate factors. The evidence is clear: the world is warming, and nature is responding. We see earlier springs, changes in where species live, and impacts on plant life.
A map from the USDA shows how the best areas for planting crops have shifted over the years due to rising temperatures. The heat is moving north, and plants are following, but can they adapt quickly enough?
One of the biggest challenges is food production. Long droughts and changing rainfall patterns will force people to move, destabilizing regions and creating climate migrants. These changes will have global impacts.
Record-breaking heat waves and extreme weather events are becoming more common. If we don’t reduce greenhouse gas levels, currently at 415 parts per million, we should prepare for even more extreme weather. It’s important for everyone to learn about climate change and understand how our actions affect the planet.
Research recent weather events in your area or another region of the world. Create a presentation that explains how these events might be connected to climate change. Use data from reliable sources to support your findings.
Conduct a simple experiment to understand the greenhouse effect. Use two clear containers, thermometers, and a lamp to simulate the sun. Cover one container with plastic wrap and leave the other open. Measure the temperature in both containers over time and discuss the results.
Participate in a classroom debate on the causes and effects of climate change. Prepare arguments for both sides: natural climate variability vs. human-induced climate change. Use scientific evidence to support your points.
Learn about dendrochronology, the study of tree rings, to understand past climate conditions. Examine tree ring samples or images and discuss what they reveal about historical climate changes and how they relate to current trends.
Create a personal or community action plan to reduce carbon emissions. Identify practical steps you can take to minimize your carbon footprint, such as reducing energy use, recycling, or advocating for policy changes. Share your plan with the class.
Here’s a sanitized version of the provided YouTube transcript:
—
Something is going on with the weather. In late winter of 2019, 14 U.S. states, from North Dakota to Louisiana, experienced historic flooding—flooding that typically occurs in spring. One month later, a severe winter storm hit wide areas of the high plains, bringing deep snow and stranding people and livestock. A winter storm in spring is unusual. Then, in April and May, a severe tornado outbreak in the central plains produced over 500 tornadoes, resulting in 13 fatalities and devastating towns from Texas to Iowa. Extreme weather events are becoming more frequent and intense, raising the question: Are these the real impacts of a warming planet?
This is more than just an extreme weather story; it’s about our food systems, water systems, health, economy, infrastructure, sports, tourism, and ways of life. Climate change is not a distant threat; it is happening now in communities across the country. There is a consensus within the scientific community that the planet is warming—this is unequivocal and cannot be denied. The instrumental record of climate data has improved significantly since about 1950, particularly with the advent of satellite technology, allowing for comprehensive global measurements. All evidence points to the same conclusion: the planet is warming from the atmosphere to the oceans.
How do we know this for sure? Thousands of weather stations around the world record temperature, rainfall, and wind. The results are clear: 2018 was the fourth warmest year on record, following 2015, 2016, and 2017. Nine of the ten warmest years since 1880 have occurred since 2005, and 2019 is on track to be among the top three warmest years recorded. The global climate is responding to this heat, affecting various types of weather in different ways. For instance, higher temperatures lead to more intense and longer-lasting heat waves, and we are also witnessing an increase in extreme rainfall events globally.
In 1859, Irish scientist John Tyndall discovered that carbon dioxide, methane, and water vapor trap heat in the atmosphere. Forty years later, Swedish scientist Svante Arrhenius predicted that carbon dioxide from fossil fuel combustion could enhance warming, coining the term “greenhouse effect.” They were correct, and now the planet is warming for the reasons they identified. However, no one could have predicted how atmospheric warming would alter weather patterns and force a permanent shift in the global climate.
Some may argue that climate has changed in the past, but the changes we are witnessing now are far beyond what we would consider natural variability. Future expected changes over the next several decades could reach a few degrees Celsius, which historically have reorganized Earth’s climate. We could face conditions reminiscent of when dinosaurs roamed the Earth, with significant implications for ecosystems and human life.
To understand past climate behavior, scientists use climate proxies—such as tree rings, ocean sediments, and ice cores—to reconstruct historical climate patterns. These records indicate that we are in a period of unprecedented warming, primarily driven by greenhouse gas emissions. The growth rings of old trees reveal hot and cold periods over centuries, while ice cores contain bubbles of ancient atmosphere. Ocean sediment cores extend our understanding even further back in time.
Natural forces like Earth’s orbital variations, solar cycles, and volcanic eruptions have historically influenced climate, but a consistent theme emerges: lower carbon dioxide levels correlate with lower temperatures, and higher levels correspond with higher temperatures. If we do not manage our emissions, we can expect more extreme weather events, rising sea levels, melting ice, and intensified tropical systems.
These changes will not occur in isolation; various extreme weather events are likely to happen simultaneously. The impacts of climate change are felt everywhere, albeit in different ways. In the western U.S., worsening droughts increase wildfire risks and degrade air quality. In the Midwest, intense rainfall events are becoming more common, disrupting farming and crop cycles. In the South, heat waves are intensifying and lasting longer.
NASA and other national agencies are closely monitoring these changes. NASA has 16 satellites collecting long-term data on various climate factors. The evidence is clear: the world is warming, and the climate is changing steadily. The natural world is responding to these changes, with earlier springs, shifts in species ranges, and observable impacts on plant life.
A USDA map illustrates the shifting ideal areas for planting crops over the years, highlighting a significant change in just 25 years due to rising temperatures. The heat is moving north, and plants are following, but the question remains: will they adapt quickly enough?
The real challenge lies in food production. Extended droughts and changing precipitation patterns will force people to migrate, destabilizing regions and creating climate migrants. These societal impacts will ripple across the globe.
Record-breaking heat waves and extreme weather events are becoming more common. Unless the world reduces greenhouse gas levels, currently at 415 parts per million, we should prepare for even more life-altering extreme weather events. My goal is to expand efforts globally to inform people about climate change and its impacts. One of the most important actions individuals can take is to discuss climate change and understand how their actions affect the planet.
—
This version maintains the core message while removing any sensitive or potentially inappropriate content.
Climate – The average weather conditions in a particular region over a long period of time. – The climate in tropical regions is typically warm and humid throughout the year.
Change – A process through which something becomes different over time. – Scientists study climate change to understand how global temperatures are rising and affecting the planet.
Warming – An increase in temperature, often referring to the Earth’s rising surface temperatures. – Global warming is causing glaciers to melt and sea levels to rise.
Weather – The state of the atmosphere at a specific time and place, including temperature, humidity, and precipitation. – Today’s weather forecast predicts sunny skies with a chance of rain in the afternoon.
Emissions – Substances, especially gases, released into the atmosphere from industrial processes, vehicles, and other sources. – Reducing carbon emissions is crucial for slowing down climate change.
Ecosystems – Communities of living organisms interacting with their physical environment. – Healthy ecosystems provide essential services like clean air and water.
Temperatures – The degree of heat present in a substance or object, often measured in degrees Celsius or Fahrenheit. – Rising global temperatures are a major concern for environmental scientists.
Rainfall – The amount of rain that falls in a specific area over a period of time. – The region experienced heavy rainfall, leading to flooding in low-lying areas.
Greenhouse – A structure with walls and a roof made chiefly of transparent material, such as glass, used for growing plants in regulated climatic conditions. – The greenhouse effect is caused by gases that trap heat in the Earth’s atmosphere.
Agriculture – The practice of cultivating soil, growing crops, and raising animals for food, fiber, and other products. – Sustainable agriculture practices help preserve the environment while producing food.