Yes, climate change is real. The scientific consensus is now over 99 percent, and every major independent measurement of the planet, from ocean temperatures to atmospheric CO₂, shows the same trend.
In June 2026, the World Meteorological Organization confirmed that 2015 to 2025 was the hottest 11-year period ever recorded, with 2025 sitting at roughly 1.43°C above the pre-industrial average. Human-caused warming reached 1.37°C in 2025, the closest we have ever been to the 1.5°C Paris Agreement threshold (WMO State of the Global Climate 2025).
But the real strength of the science is not one number or one report. It is the fact that thousands of independent studies, run by scientists across every continent, tell the same story. This article walks through ten of the most important, so you can see the evidence for yourself.
Table of contents
Why this question still comes up The 2026 picture in numbers Ten landmark climate studies 1. IPCC AR6 Working Group I: The Physical Science Basis (2021) 2. IPCC Special Report on 1.5°C (2018) 3. IPCC Special Report on Climate Change and Land (2019) 4. IPCC Special Report on Ocean and Cryosphere (2019) 5. Frank et al. on Carbon Feedback Loops 6. Friedlingstein et al. on Extreme Events and Carbon Sinks 7. Haunschild et al. on the Growth of Climate Research 8. Williamson on Reducing Climate Sensitivity Uncertainty 9. Indicators of Global Climate Change (annual, most recent 2026 update) 10. Cheng et al. on Nature-Based Solutions What they all agree on Do these studies contradict each other? What this means for UK businesses Ready to take credible climate action? Carbon Neutral Britain™
Why this question still comes up
The science of climate change is one of the most heavily studied fields in modern history, built on tens of thousands of peer-reviewed studies and decades of observation. And yet, if you type "is climate change real" into Google, you can still see uncertainty, doubt and honest confusion. That is understandable. Climate coverage is often loud, polarised, or tied up with politics. It can be genuinely hard to see through the noise.
So instead of telling you what to think, we thought it would be more useful to walk you through the evidence itself. Ten landmark studies, from different scientific teams, in different countries, working on different parts of the climate system, all pointing to the same conclusion.
If you are a business leader trying to understand what is real, what is exaggerated, and what to plan around, this is the honest starting point.
Together, these ten sources form a near-impenetrable wall of scientific consensus. They show that climate change is real, dangerous, and accelerating
The 2026 picture in numbers
Before we get to the ten studies, here is where the science stands as of mid 2026, based on the most recent independent assessments:
- 2015 to 2025 was the hottest 11-year period ever recorded ( WMO).
- 2025 was the second or third warmest year on record, at around 1.43°C above the 1850 to 1900 pre-industrial average ( WMO).
- Human-caused warming reached 1.37°C in 2025 ( Climate Fact Checks summary of the Indicators of Global Climate Change assessment).
- Ocean heat content hit a new record high in 2025. Oceans absorb about 91 percent of the extra heat trapped by greenhouse gases ( WMO).
- Global sea surface temperatures broke previous records again in June 2026, exceeding the levels seen in 2023 and 2024 ( Copernicus Climate Change Service).
- Sea level has risen roughly 11 centimetres since the beginning of satellite records in the early 1990s, and the rate of rise has more than doubled ( WMO).
- UK-specific: winter 2025 to 2026 was one of England's wettest on record, with rainfall 42 percent above the long-term average, and most of the country was in drought or prolonged dry weather during summer 2025 ( Met Office data via GOV.UK National Drought Group).
- Scientific consensus on human-caused climate change now sits between 98.7 and 100 percent across the most recent studies ( Scientific consensus on climate change, peer-reviewed reanalyses).
These are not projections. They are measured, observed, published numbers, from independent scientific bodies whose only job is to record what is actually happening.
Ten landmark climate studies
Each of these papers plays a distinct role in the wider picture. Together, they form a near-impenetrable wall of scientific evidence.
1. IPCC AR6 Working Group I: The Physical Science Basis (2021)
- Who wrote it: 234 scientists from 66 countries
- Peer review: Over 78,000 expert comments reviewed
- Published by: Intergovernmental Panel on Climate Change
The most authoritative scientific summary of how and why Earth's climate is changing. It draws on more than 14,000 scientific publications to deliver one clear message: human influence on the climate system is "unequivocal." It covers rising temperatures, sea-level rise, glacier melt, extreme weather and atmospheric CO₂ levels.
Why it matters: Approved by all 195 UN member countries, making it the most globally validated assessment of climate science. It underpins the UK's net zero targets.
Key finding: Every additional 0.5°C of warming will increase the intensity and frequency of heat extremes, heavy precipitation and droughts.
2. IPCC Special Report on 1.5°C (2018)
- Who wrote it: 91 authors from 40 countries
- Sources cited: Over 6,000 scientific studies
Compares the impacts of 1.5°C and 2°C of global warming. Even half a degree makes a significant difference for sea-level rise, extreme weather, biodiversity, and food security.
Why it matters: Set the global target of 1.5°C and outlined what a 1.5°C pathway would require: "rapid, far-reaching and unprecedented changes in all aspects of society."
3. IPCC Special Report on Climate Change and Land (2019)
- Who wrote it: 107 authors from 52 countries
Examines how land, forests, soils and agriculture interact with climate change. Land is both a source and a sink for carbon, and sustainable land management is essential.
Key finding: Around 23 percent of global human greenhouse gas emissions come from agriculture, forestry and other land uses.
4. IPCC Special Report on Ocean and Cryosphere (2019)
- Who wrote it: 104 authors from 36 countries
- Sources cited: Nearly 7,000 scientific publications
Focuses on how oceans, glaciers, sea ice and permafrost are changing. Covers sea-level rise, ocean acidification, marine heatwaves and ice melt.
Key finding: Since 1993, the rate of global sea-level rise has more than doubled.
5. Frank et al. on Carbon Feedback Loops
- Published in: Philosophical Transactions of the Royal Society A
Explains how climate change can accelerate itself. As the planet warms, natural systems such as soils and forests may release more carbon than they absorb, amplifying the problem.
Why it matters: Rebuts the myth that "nature will take care of it." Climate change can weaken nature's ability to help.
6. Friedlingstein et al. on Extreme Events and Carbon Sinks
- Published in: Global Change Biology
Shows how droughts, heatwaves and floods disrupt forests and ecosystems, reducing their ability to absorb CO₂.
Key finding: The 2003 European heatwave caused forests to release as much CO₂ as the annual emissions of the UK.
7. Haunschild et al. on the Growth of Climate Research
- Data studied: 222,060 scientific papers from 1980 to 2014
Maps the growth of climate research worldwide. Shows the scientific field has expanded rapidly, doubling roughly every five to six years.
Why it matters: Counters the claim that climate science is "fringe" or "politicised." It is one of the most robust and dynamic fields of modern research.
8. Williamson on Reducing Climate Sensitivity Uncertainty
- Published in: arXiv preprint, with peer-reviewed follow-up in progress
Reviews methods to reduce uncertainty in climate sensitivity, the amount the Earth will warm in response to CO₂ doubling.
Why it matters: One of the favourite sceptic arguments is that climate models are too uncertain. This paper shows how scientists are actively narrowing those uncertainties using real-world data.
9. Indicators of Global Climate Change (annual, most recent 2026 update)
- Published in: Earth System Science Data
- Based on: Observed data, not just models
Tracks the most important indicators of climate change year by year, including temperature, greenhouse gas levels, radiative forcing and human attribution.
Key finding: The human-induced share of warming over 2014 to 2023 was 1.19°C, almost exactly equal to the total warming observed over that period. The 2026 update raised the figure to 1.37°C for 2025.
10. Cheng et al. on Nature-Based Solutions
- Scale: Reviewed over 2 million articles, synthesising 257,266 studies
An enormous evidence map showing where and how "natural climate solutions," such as reforestation, mangrove restoration and soil carbon, benefit both people and biodiversity.
Key finding: Co-benefits, meaning climate plus human plus biodiversity gains, are especially strong in low-income countries. Nature-based solutions can be a genuine triple win.
What they all agree on
Ten different research teams, working on different pieces of the puzzle, and yet the conclusions line up:
- The planet is warming, fast. All ten studies confirm global temperatures are rising at an unprecedented rate in modern history.
- Human activity is the dominant cause. Fossil fuel combustion, land use change and industrial emissions are the drivers.
- Every fraction of a degree matters. Going from 1.5°C to 2°C dramatically increases risks of extreme heat, sea-level rise and biodiversity loss.
- Carbon feedback could make things worse. As the climate warms, ecosystems may release more carbon, accelerating the problem.
- Land and ocean systems are under strain. Forests, soils, oceans and cryospheres are losing their capacity to buffer emissions.
- Observed data confirms model predictions. The warming we measure today closely matches what models projected decades ago.
- Climate change is already harming ecosystems and people. From food security to flood risk, the impacts are visible now.
- Scientific consensus is deep and global. Hundreds of scientists from dozens of countries, reviewed by thousands.
- Uncertainty is being reduced, not ignored. Studies actively narrow climate sensitivity ranges and improve models.
- Solutions exist and can bring multiple benefits. Natural climate solutions, sustainable land use and targeted mitigation can help both people and nature.
The real question is no longer whether climate change is real. It is whether we will act on what the science already knows.
Do these studies contradict each other?
A fair question, and one that deserves a clear answer: no, they do not.
Each paper explores a different dimension of the climate system, but their conclusions reinforce and complement each other:
- They cover different parts of the system. Some focus on physical science (IPCC reports), others on ecosystem feedbacks (Frank, Friedlingstein), model uncertainty (Williamson) or research trends (Haunschild). Each has a distinct lens, but the overarching story remains the same.
- They acknowledge and refine uncertainty. Science thrives on uncertainty and iteration. Climate models are continuously refined based on real-world data. This is how the science strengthens, not weakens.
- Their conclusions converge. All ten sources agree that the planet is warming rapidly, human activity is the main driver, natural systems are under stress, delay increases risk, and action improves outcomes.
Think of these not as ten conflicting voices, but as ten vantage points on the same unfolding picture. Like a jury of experts, each trained in a different field, delivering the same verdict.
What this means for UK businesses
If the science is settled, the business question shifts. It is no longer "is this really happening?" It is "how do we respond credibly, and what does that mean for our organisation?"
For UK businesses in particular, 2026 brings three important shifts:
- UK SRS S1 and S2, the new UK Sustainability Reporting Standards, were adopted on 25 February 2026 and will apply on a mandatory basis for financial years starting from 1 January 2027 for around 515 UK-listed companies. Voluntary use is encouraged before then.
- The Competition and Markets Authority gained direct fining powers of up to 10 percent of global annual turnover under the Digital Markets, Competition and Consumers Act 2024, which came into force in April 2025. Green claims are now enforceable in a way they were not before.
- The SBTi Corporate Net-Zero Standard v2 was published on 11 June 2026 and comes into effect on 1 February 2027, tightening what a credible corporate net zero claim looks like.
Together, these changes make it more important than ever for businesses to measure emissions accurately, reduce where possible, and act on the parts they cannot yet avoid. If you are working out where to begin, our page on how to become a carbon neutral business walks through the practical steps.
For a deeper look at the difference between the two most common climate claims, our guide to net zero vs carbon neutral explains what each one actually means, how they differ, and which is right for your organisation.
And if you want to understand how carbon credits fit into a credible strategy, our guide to verified carbon offsetting standards walks through the frameworks that make an offset genuinely count.
Ready to take credible climate action?
oin over 2,000 British businesses leading the way in credible, science-based climate action. The Carbon Neutral Britain™ Certification helps organisations measure, reduce and offset their carbon emissions with integrity. Built on internationally recognised standards, our process ensures real impact, not greenwash.
What we offer:
- Scientific measurement of your carbon footprint
- Verified carbon offsetting with high-integrity global projects
- Bespoke carbon reduction strategies tailored to your business
- Official certification to demonstrate your climate commitment
Join the movement for real, responsible net zero progress, led by science, not slogans. Learn more about our certification.
Carbon Neutral Britain™
Join over 1,000 British businesses leading the way in credible, science-based climate action. The Carbon Neutral Britain™ Certification helps organisations measure, reduce, and offset their carbon emissions with integrity. Built on internationally recognised standards, our process ensures real impact, not greenwash.
What do we offer:
Scientific measurement of your carbon footprint
Verified carbon offsetting with high-integrity global projects
Bespoke carbon reduction strategies tailored to your business
Official certification to demonstrate your climate commitment
Join the movement for real, responsible net zero progress, led by science, not slogans.
Is climate change real?
Yes, climate change is real, and we can now measure it clearly. Earth's climate has always shifted naturally, but today's warming is happening far faster than any known natural cycle, and it directly matches the rise of human-made emissions. Satellite data, ocean measurements and ice-core studies all show the same trend: the planet is warming unusually quickly.
Scientists can now "fingerprint" the cause of warming. Natural factors like the sun, volcanoes and ocean cycles have been ruled out. Meanwhile, atmospheric data shows a sharp rise in CO₂ from fossil fuels, which traps heat exactly as physics predicts. Simply put, the atmosphere is changing in ways only human emissions can explain.
Hasn't Earth's climate changed before?
Yes, it has, but never this fast. Past changes took thousands of years. Today's shift is happening over decades. Speed matters. Rapid change gives ecosystems, economies and communities far less time to adapt.
If it was cold last week, how can the planet be warming?
Weather changes daily. Climate is the long-term trend. A single cold day does not cancel global warming, just as one hot day does not prove it. Globally, temperatures are rising over time and record heat events are increasing sharply. In 2025, the WMO recorded 157 extreme climate events worldwide.
Do most scientists actually agree on this?
Yes, there is overwhelming agreement. Studies published between 2019 and 2021 show scientific consensus on human-caused climate change ranging from 98.7 to 100 percent. Every major scientific body, including the Met Office, NASA, the WMO and the IPCC, has reached the same conclusion.
Is there real scientific agreement on climate change?
Yes, there is overwhelming agreement.
Studies show over 97% of climate scientists agree that human-driven climate change is happening. Major scientific bodies worldwide, including the Met Office, NASA, and the IPCC, have reached the same conclusion.
Are the effects already happening?
They are. We are seeing more intense heatwaves, rising sea levels, shifting weather patterns and storms, and melting glaciers and Arctic ice. In June 2026, Western Europe experienced its hottest June on record, at 3.05°C above the 1991 to 2020 average. Farmers, insurers, governments and businesses are adapting now, not someday.
Why act now rather than later?
Because prevention is far cheaper and easier than repair. Acting early protects economies, communities and future generations, turning risk into opportunity. The Indicators of Global Climate Change 2025 update projects the remaining 1.5°C carbon budget could be exhausted within about three years at current emission rates.
Where should a UK business start?
Start with measurement, then reduction, then offsetting only what cannot yet be avoided. Our page on how to become a carbon neutral business walks through the practical steps, and our carbon neutral certification helps you make a claim you can stand behind.
