Is climate change real?

Yes, climate change is real.

There is an overwhelming and unequivocal scientific consensus that the Earth's climate is warming rapidly and that human activities are the primary driver.

Multiple peer-reviewed studies show that between 97% and over 99% of actively publishing climate scientists agree on this. This consensus is officially shared by major scientific organizations worldwide, including the Intergovernmental Panel on Climate Change (IPCC), NASA, the National Oceanic and Atmospheric Union (NOAA), and the national science academies of major industrialized nations.

What is Causing It?

While Earth’s climate has gone through natural cycles over millions of years, the warming observed today is happening far faster than past natural shifts. The primary driver is human activity, specifically:

•Burning Fossil Fuels: Burning coal, oil, and gas for energy releases greenhouse gases—primarily carbon dioxide ($CO_2$) and methane—into the atmosphere.

•The Greenhouse Effect: These gases act like a blanket around the Earth, trapping heat from the sun that would otherwise escape back into space.

•Deforestation and Land Use: Cutting down forests (which naturally absorb carbon dioxide) and industrial farming practices release further greenhouse gases and reduce the planet's capacity to regulate its climate.

The Evidence

Scientists track climate change through a wide range of independent, observable indicators:

1.Rising Temperatures: Global average surface temperatures have risen rapidly since the late 19th century. The past ten years have been the warmest decade on record, with recent years continually breaking global temperature records.

2.Shrinking Ice Sheets and Glaciers: Glaciers worldwide are retreating, and the ice sheets in Greenland and Antarctica are losing hundreds of billions of tons of mass per year. Arctic sea ice has also shrunk dramatically in both thickness and area.

3.Warming and Acidifying Oceans: Earth's oceans absorb more than 90% of the excess heat trapped by greenhouse gases. They also absorb about a quarter of human-produced $CO_2$, which reacts with seawater to make the oceans more acidic, threatening marine ecosystems.

4.Rising Sea Levels: Global sea levels are rising at an accelerating rate. This is driven by two factors: water melting from glaciers and ice sheets, and the thermal expansion of seawater as it warms.

5.More Extreme Weather: Scientists have observed an increase in the frequency and intensity of extreme weather events, including more severe heatwaves, prolonged droughts, heavier rainfall, and stronger tropical storms.

In its Sixth Assessment Report, the IPCC summarized the situation unequivocally: "It is unequivocal that human influence has warmed the atmosphere, ocean and land. Widespread and rapid changes in the atmosphere, ocean, cryosphere and biosphere have occurred."

Citations (5)

1nasa.govGovernment
nasa.gov
Backs: “Yes, climate change is real.”
2climateforesight.euNonprofits and think tanks
climateforesight.eu
Backs: “Yes, climate change is real.”
3wikipedia.orgEncyclopedias and referencequality 0.83
wikipedia.org
Backs: “There is an overwhelming and unequivocal scientific consensus that the Earth's climate is warming rapidly and that human activities are the primary driver.”
4climate.govGovernment
climate.gov
Backs: “Multiple peer-reviewed studies show that between 97% and over 99% of actively publishing climate scientists agree on this.”
5theclimateconsensus.orgNot yet classified
theclimateconsensus.org
Backs: “More Extreme Weather: Scientists have observed an increase in the frequency and intensity of extreme weather events, including more severe heatwaves, prolonged droughts, heavier rainfall, and stronger tropical storms. In its Sixth Assessment Report, the IPCC summarized the situation unequivocally: "It is unequivocal…”