There’s a very strong scientific consensus that human activities are the primary cause of recent global warming. This conclusion comes from multiple independent lines of evidence across physics, atmospheric science, geology, and direct observations. Here are the main categories of
generally agreed-upon scientific evidence:
1. Direct Measurement of Rising Greenhouse Gases
- Atmospheric CO₂ levels have risen from ~280 ppm (pre-industrial) to over 420 ppm today.
- Measurements from observatories like Mauna Loa Observatory show a continuous increase since 1958 (the “Keeling Curve”).
- The chemical signature of this CO₂ (lower ratios of carbon-13) matches fossil fuel combustion, not natural sources.
2. Basic Physics: The Greenhouse Effect
- The warming mechanism is based on well-established physics dating back to Svante Arrhenius in 1896.
- Greenhouse gases (CO₂, methane, etc.) trap outgoing infrared radiation.
- Satellite measurements confirm that less heat is escaping to space at CO₂ absorption wavelengths, while more is being re-radiated back to Earth.
3. Global Temperature Records
- Surface temperature datasets from groups like NASA and NOAA show:
- ~1.1–1.3°C (2–2.3°F) warming since the late 1800s.
- The last decade has been the warmest on record.
- Warming is observed across land, oceans, and the lower atmosphere.
4. Climate Models Only Match Reality With Human Inputs
- Climate models simulate temperature changes using different factors:
- Natural factors alone (solar changes, volcanoes) → do NOT reproduce modern warming
- Natural + human factors → accurately match observed warming
- This is a critical attribution test used by the Intergovernmental Panel on Climate Change (IPCC).
5. Fingerprints of Human-Caused Warming
Scientists observe specific patterns (“fingerprints”) that distinguish human warming from natural causes:
- Troposphere warming + stratosphere cooling
(expected from greenhouse gases, not solar increases)
- Greater warming at night than during the day
- More warming in the Arctic than the tropics (Arctic amplification)
- Oceans absorbing over 90% of excess heat
6. Ocean Heat Content Increase
- The oceans have steadily accumulated heat over decades.
- This is measured directly with instruments like the Argo float system.
- Ocean warming cannot be explained by short-term natural variability.
7. Melting Ice and Rising Sea Levels
- Global sea levels have risen about 8–9 inches since 1900.
- Ice loss is accelerating in:
- Glaciers worldwide are retreating, and Arctic sea ice is shrinking.
8. Isotopic Evidence (Carbon Fingerprinting)
- Fossil fuels contain less carbon-13 than atmospheric carbon.
- The observed decline in carbon-13 in the atmosphere confirms that the added CO₂ is coming from burning fossil fuels, not volcanoes or oceans.
9. Energy Imbalance of the Earth
- Satellites measure more energy entering Earth’s system than leaving it.
- This imbalance is consistent with increased greenhouse gases trapping heat.
10. Scientific Consensus
- Multiple studies show ~97% or higher agreement among actively publishing climate scientists that humans are causing global warming.
- Major scientific bodies worldwide agree, including:
- American Association for the Advancement of Science
- National Academy of Sciences
- World Meteorological Organization
Bottom Line
No single piece of evidence stands alone—the conclusion comes from
many independent, cross-checking lines of data:
- Measured rise in greenhouse gases
- Known physical mechanisms
- Observed warming patterns
- Climate model validation
- Ocean and ice changes
- Chemical fingerprints
Together, these form a coherent and highly robust scientific case that human activities—primarily burning fossil fuels—are the dominant cause of recent global warming.
1. CO2 levels have been much higher in the past. The it was significantly warmer in the 30’s and the CO2 concentration was much lower.
2. The CO2 concentration(0.04%) in the atmosphere is far too small to be a contributor to a temperature rise.
3. The rise in temperature is mostly due to the urbanization around temperature sensors and the fact that many of the studies rig the numbers by removing the “outliers” which happen to be rural sensors which record significantly lower temperatures. The rural sensors also show no significant warming since 1950.
4. The rise in CO2 only correlates with a similar rise in temperature if you use the doctored numbers that exclude rural areas. The rural areas show no such correlation. If there was global warming then these areas would show a proportional increase as urban areas, they do not.
5. Urban areas stay significantly higher nighttime temperatures. Once again the rural areas excluded in the studies that corroborate warming.
6. We are not experiencing short term warming. Since the Little Ice Age (500years ago) temperatures have been steadily rising and are near the highest temperatures in history.
7. The sea levels have not significantly risen and are no where near historical highs. In the short term, the polar ice cap area has increased and the polar bear population has risen sharply.
8. Every level of radiation has increased dramatically since 1945. There were multiple atomic explosions in the atmosphere until very recently. This affects things like atmospheric radiation and radioactive dating.
9. The Sun warms the earth. Other than geothermal heating, which small compared to solar, are it. The higher the activity of the Sun the more energy enters the atmosphere.
10. This the only one you got right. Climate change is generally excepted nu climate scientists because that is where the money is.
Bottom Line
There is a tremendous amount of money to be made by perpetuating the climate hoax.
There is also a lot of power gained by the green leftist. Search engines and AI are polluted by the massive bombardment of propaganda .
And I didn’t have to google any pf this unlike you.