wildfires climate change facts

27 Shocking Climate Change Facts Everyone Needs to Know

If there’s one global issue we should all get behind, that is climate change. As our planet’s temperature continues to rise, the impact of climate change is becoming increasingly apparent. From extreme weather events to rising sea levels, the effects are undeniable. 

But despite the overwhelming evidence, some still doubt that climate change exists.

In this blog post, I’ll be sharing some shocking and thought-provoking climate change facts that everyone should know. From the impacts on our planet’s ecosystems to the economic and social consequences, we’ll explore the full extent of this global challenge. So, let’s dive in and discover the truth about climate change. 

Warning: This topic can provoke negative thoughts and feelings. It’s difficult to write, and I’m sure it will be just as difficult to read. But it’s important to know the facts and how the future might look like, if not for us then for the next generations. 

Feel free to jump to a section of your choice:

Key Climate Change Facts You Should Know

  • For the past 2000 years, the Earth’s surface temperature has increased the fastest since 1970.
  • In 2019, the levels of carbon dioxide in the atmosphere were the highest they’ve been in at least 2 million years. Methane and nitrous oxide concentrations were also higher than they’ve been in at least 800,000 years.
  • It’s likely that global warming will go beyond 1.5 degrees in the 21st century.
  • Between 3.3 and 3.6 billion individuals live in areas that are at high risk of being affected by climate change.
  • As the temperature continues to rise, all areas are expected to face climate change effects, such as frequent heatwaves and droughts.
  • Facts about climate change show that around 79% of greenhouse gas emissions worldwide in 2019 came from the industry, energy, transport, and buildings sectors, while approximately 22% came from agriculture, forestry, and other land-use activities.
  • Scientists are confident that there have been hundreds of local species extinctions due to increased heat extremes.
  • Ocean warming and melting of ice sheets will continue, resulting in sea level rise that cannot be avoided, and the elevated sea levels will persist for thousands of years.
  • If the warming continues and reaches levels between 2°C and 3°C, it’s highly likely that the Greenland and West Antarctic ice sheets will melt completely and irreversibly, leading to a rise in sea levels.
  • In 2023, more money is being invested in fossil fuels compared to investments in climate mitigation efforts.

Let’s dive into climate change data and find out more about this pressing issue that will affect people all around the world.

What Is Climate Change?

Climate change is a long-term change in the Earth’s climate patterns that occur over a significant period of time, usually decades or longer. It marks the gradual changes in the planet’s temperature, precipitation, wind patterns, and other indicators. 

The scientific community largely attributes climate changes to human activities, such as burning fossil fuels and deforestation, which release large amounts of greenhouse gases into the atmosphere. These gases trap heat and prevent it from escaping back into space, causing a global temperature rise. This process is called the greenhouse effect.

The impacts of climate change are far-reaching and can include rising sea levels, more frequent and severe weather events, changes in precipitation patterns, and the extinction of plant and animal species. These changes can have significant economic, social, and environmental consequences that can affect all of us. 

Climate change is a global challenge that requires immediate action to mitigate its effects and work towards a better future. This includes reducing greenhouse gas emissions through the use of renewable energy sources and implementing policies and practices to promote sustainability.

melting glaciers

Global Warming vs Climate Change — What’s the Difference?

While many people use global warming and climate change interchangeably, the two terms represent different phenomena. Global warming refers specifically to the long-term increase in the Earth’s average global temperature, while climate change has a broader range, including changes in precipitation patterns, sea levels, and weather patterns.

So, why are these terms used interchangeably? Well, for one thing, they’re closely related. Also, both global warming and climate change result from human activities that release large amounts of greenhouse gases into the atmosphere.

The difference between global warming and climate change may seem trivial, but it’s important to understand it. Just remember that climate change is the broader term that considers the full range of environmental changes happening on the planet.

If we want to understand this complex issue further, it’s important to look at the available climate change data. This can provide valuable insights into the trends and patterns that are shaping the Earth’s climate.

Short History of Climate Change

Climate change is a phenomenon that has been happening for millions of years. However, it was not until the mid-19th century that scientists began to understand how human activities were affecting the climate. In 1896, a Swedish scientist named Svante Arrhenius discovered that carbon dioxide (CO2) in the atmosphere could trap heat and cause global warming.

Over the next few decades, scientists continued to study global warming data and the effects of CO2 on the climate. In the 1970s, concerns about global cooling dominated the conversation, but by the 1980s, the focus had shifted to global warming. In 1988, the Intergovernmental Panel on Climate Change (IPCC) was established to assess the science and potential impacts of climate change.

Since then, the scientific consensus has become clear: human activities, such as burning fossil fuels and deforestation, are causing the Earth’s temperature to rise at an unprecedented rate. This has led to a range of impacts, including sea-level rise, more frequent and severe weather events, and the loss of biodiversity.

Why Is Climate Change Important?

Today, climate change is one of the most pressing issues facing the world. It can cause more frequent and intense extreme weather events, rising sea levels, and the loss of important ecosystems and species.

These effects could be catastrophic and can cause significant economic, social, and environmental damage. They can also threaten human health and well-being, particularly for vulnerable populations such as children, the elderly, and those living in poverty.

Aside from the risks and impacts of climate change, there are also opportunities to mitigate its effects and build a more sustainable future. By transitioning to cleaner energy sources, improving energy efficiency, and adopting sustainable land use practices, we can reduce greenhouse gas emissions and protect our planet for future generations.

The scientific evidence is overwhelming, and the impacts are already being felt by communities around the globe. It’s up to individuals, businesses, and governments to reduce emissions and limit the worst effects of climate change.

air pollution

What Causes Climate Change?

Many factors contribute to climate change, but the biggest driver is human activities that release greenhouse gases into the atmosphere. These gases trap heat from the sun, causing the Earth’s temperature to rise. 

The most significant greenhouse gas is carbon dioxide, which is released from burning fossil fuels like coal, oil, and gas for energy. Other human activities that contribute to climate change include deforestation, agriculture, and industrial processes.

While natural factors such as volcanic eruptions and changes in the Earth’s orbit also play a role in climate change, the current rate of global warming is unprecedented and cannot be explained by natural factors alone. 

Scientists have been studying climate change for decades and have amassed a wealth of evidence that shows human activities are the primary cause. If you’re still not convinced of the validity of their claim, read the next section.

Evidence for Climate Change

Climate change is not just a theory. It’s supported by numerous pieces of evidence. Six independent studies show that 90% to 100% of climate scientists agree that humans are causing global warming.

One of the most significant signs is the rise in global temperatures. The Earth’s temperature has been increasing rapidly, with each of the last four decades being hotter than the previous one. 

Another indicator of climate change is the increasingly extreme weather events such as droughts, heatwaves, hurricanes, and floods. They’ve been happening much more frequently and with greater intensity, which will continue to be the case unless we do everything in our power to reduce Earth’s temperature over time.

The melting of glaciers and ice caps is also evidence of climate change. Glaciers have been shrinking rapidly worldwide, and the Arctic sea ice is declining at a rate of approximately 12% per decade. The rising sea level is yet another indication of climate change. The sea level has been rising increasingly over the past century, and this trend is expected to continue.

Changes in the behavior and migration patterns of animals, birds, and marine life are additional proof of climate change. The timing of plant growth and the blooming of flowers is also changing, with some species blooming earlier than usual. 

These are just a few examples of the evidence for climate change, and they all point toward the urgent need for action to mitigate its impacts.

Climate change is causing numerous noticeable trends across the globe. One of the most significant ones is the rise in global temperatures, which has led to more heat waves, melting ice caps, and rising sea levels. Precipitation patterns are also changing, with some regions experiencing more intense and frequent rain and snowfall, while others are facing longer droughts.

There is also evidence of changes in the distribution and behavior of plant and animal species, as well as changes in the timing of natural events such as flowering and migration. The acidity of the ocean is increasing, leading to a decline in marine biodiversity and potentially devastating effects on the global food chain.

These changes and the accumulating global warming evidence show its effects on human societies, with increased frequency and severity of hurricanes, floods, and wildfires. This leads to increased economic costs, displacement of communities, and loss of life.

Overall, the trends associated with climate change are complex and far-reaching, affecting ecosystems, human societies, and the planet’s basic functioning. It’s essential to mitigate the causes of climate change and adapt to the already occurring changes to protect the planet and the future of humanity.

Climate Change Problems

Climate change poses a significant risk to both the health of our planet and our well-being. We still have a chance to secure a sustainable future, but we must act quickly. The window of opportunity is rapidly closing, and we need to take action now.

That said, there are several challenges that make it difficult for communities to adapt to climate change. These include:

  • Not enough money and resources
  • Lack of research funding
  • Lack of involvement from private companies and citizens
  • Lack of understanding about climate change
  • Not enough political support
  • Lack of urgency

We can prevent some of these issues by planning and implementing long-term, flexible, and inclusive sustainable changes. It’s also worth noting that we’ll all face the effects of climate change due to trends such as migration, urbanization, and growing inequality.

climate change protesters

More Important Facts About Climate Change

Climate change is a global phenomenon that affects everyone, regardless of where you live, what you do, or how much money you have. Whether you’re a climate change skeptic or a concerned citizen, you must understand the scale of the problem and what we can do to address it. 

Here are a few more important climate change facts you should consider:

  • Climate change affects vulnerable communities the most, including low-income populations and indigenous peoples.
  • When global warming exceeds 1.5°C, small islands and regions dependent on glaciers and snow melt may face severe limits to their freshwater resources, making it harder for them to adapt to the changing climate. That’s why we should also pay attention to water waste statistics.
  • 90% of the heat that has been trapped by greenhouse gases has been absorbed by the ocean.
  • 90% of the world’s coral reefs that remain are in danger and could vanish entirely by 2050 due to climate change effects.
  • Recent climate change numbers show that the transportation industry contributes to around 15% of global greenhouse gas emissions, ranking it as the fourth highest emitter after power, industry, and agriculture-forestry-land use.
  • The production, packaging, and distribution of food contribute to one-third of greenhouse gas emissions and are responsible for up to 80% of biodiversity loss.
  • Around 17% of food goes to waste, leading to up to 10% of global greenhouse gas emissions.
  • Evidence suggests that rising temperatures may make humans more likely to exhibit violent, aggressive, and angry behaviors.
  • More than 90% of people are breathing polluted air at levels considered harmful to human health. The major cause behind this is the burning of fossil fuels, which is also responsible for climate change.
  • A 2022 report exploring global warming consequences on our water sources stated that roughly 2 billion individuals worldwide lack access to clean drinking water. This figure is predicted to rise due to climate change and population growth.

These facts show bits and pieces of a much larger and much more disturbing global picture that requires our immediate attention and action to mitigate the effects of climate change. But what can each of us do to help the planet? Read on to find out.

What You Can Do About Climate Change

With so much information and shocking statistics on climate change, it can be overwhelming to know where to start. So, let’s break down some simple and practical steps you can take to help combat climate change and make a positive impact on our planet:

  • Reduce food waste — Plan your meals, eat leftovers, and learn how to store food appropriately.
  • Try to follow a sustainable healthy diet by limiting your meat consumption and including more plant-based foods in your daily nutrition. They use much less energy, water, and land and produce fewer greenhouse gas emissions.
  • Recycle. Recycling reduces energy consumption, which in turn reduces greenhouse gas emissions from extracting raw materials to make new products.
  • Support sustainable businesses. If more people do that, we can increase the demand for eco-friendly production practices. 
  • Plan your next vehicle to be electric. Electric vehicles usually have lower greenhouse gas emissions over their lifetime compared to gasoline-powered cars, even if we account for the emissions produced during manufacturing.
  • Use and promote public transport and walk whenever possible. It’s much more environmentally friendly compared to driving. 
  • Educate yourself and others on the science behind climate change and its effects. That can help increase awareness of climate change risks and speed up the process of changing behaviors and planning.

By making changes to our daily habits, supporting sustainable practices, and advocating for policy changes, we can all play a part in reducing the risks of climate change. 

It’s up to us to take action and make a positive impact on the future of our planet. Let’s work together to create a more sustainable and livable world for generations to come.


Is climate change real?

Yes, climate change facts show that it is real. It’s an ongoing and measurable shift in global temperatures, sea levels, weather patterns, and other environmental factors caused primarily by human activity, like the burning of fossil fuels and deforestation.

Who discovered climate change?

Climate change is not a discovery, but a phenomenon that has been observed over time by scientists from various fields. The concept of human-caused climate change emerged in the 19th century with the recognition of the greenhouse effect by scientists such as Svante Arrhenius and has been studied extensively by researchers ever since.

When did climate change start?

Climate change is a natural phenomenon that has been occurring on Earth for millions of years. However, human-caused signs of climate change, largely driven by the burning of fossil fuels, began in the 19th century with the Industrial Revolution. Since then, global temperatures have risen significantly, causing widespread impacts on the planet.

Is the Earth warming?

Yes, the Earth is warming. The global surface temperature has increased by about 1.1 degrees Celsius since the late 19th century, with the majority of that warming occurring in the past few decades.

How do we know the climate is changing?

Scientists use various methods to study the climate, including examining temperature records, ice cores, and tree rings. These studies have shown that the Earth’s temperature is rising at an unprecedented rate and that this warming trend is primarily caused by human activities.

How long has climate change been an issue?

Scientific evidence of climate change shows that the issue has been a concern for decades. The scientific community has been studying the topic for over a century, and its effects have been observed and documented. However, it wasn’t until the late 20th century that climate change became a major global issue.

Will we die from climate change?

While it’s unlikely that climate change alone will lead to human extinction, it can have severe and widespread impacts on human health, security, and well-being. Still, extreme weather events, sea level rise, food and water insecurity, and the spread of diseases, will lead to increased deaths worldwide.

How much time do we have to stop climate change?

The exact timeline is uncertain, but scientists agree that urgent action is needed within the next decade to limit the worst effects of climate change. Climate change facts show that the longer we delay taking action, the more difficult and costly it will be to mitigate and adapt to the impacts of a changing climate.

Other Used Sources:

  1. IPCC AR6 Synthesis Report Climate Change 2023
  2. The New York Times
  3. UN
  4. Medium
  5. UN Stats

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