Your ideological dogma appears to be impervious to science, but if you are really trying to grasp reality, I'll provide it with little hope that you are capable of accepting it.
The research falls into nine independently studied, but physically related, lines of evidence:
- Simple chemistry – When we burn carbon-based materials, carbon dioxide (CO2) is emitted (research beginning in the 1900s).
- Basic accounting of what we burn, and therefore how much CO2 we emit (data collection beginning in the 1970s).
- Measuring CO2 and other greenhouse gases in the atmosphere and trapped in ice to find they are increasing, with levels higher than anything we've seen in nearly a million years (measurements beginning in the 1950s).
- Chemical analysis of the atmospheric CO2 that reveals the increase is coming from burning fossil fuels (research beginning in the 1950s).
- Basic physics that shows us that CO2 absorbs heat (research beginning in the 1820s).
- Monitoring climate conditions to find that the air, sea and land is warming, as we would expect with rising greenhouse gas emissions; as a response, ice is melting and sea level is rising (research beginning in the 1930s).
- Ruling out natural factors that can influence climate like the sun and ocean cycles (research beginning in the 1830s).
- Employing computer models to run experiments of natural versus human-influenced simulations of Earth (research beginning in the 1960s).
- Consensus among scientists who consider all previous lines of evidence and make their own conclusions (polling beginning in the 1990s).
Scientists have amassed an overwhelming amount of evidence that humans are the main cause of climate change. Here are 9 ways the evidence stacks up.
www.edf.org
If you prefer a failed casino operator's evidence-free claim that it is all a Chinese hoax, there is nothing that could convince you of the truth, of course.
You can vehemently reject all the scientific authorities that differ with your failed casino operator. Here are a few of the Trump apostates as compiled by NASA:
AMERICAN SCIENTIFIC SOCIETIES
Statement on Climate Change from 18 Scientific Associations
"Observations throughout the world make it clear that climate change is occurring, and rigorous scientific research demonstrates that the greenhouse gases emitted by human activities are the primary driver."
American Association for the Advancement of Science
"Based on well-established evidence, about 97% of climate scientists have concluded that human-caused climate change is happening."
American Chemical Society
"The Earth’s climate is changing in response to increasing concentrations of greenhouse gases (GHGs) and particulate matter in the atmosphere, largely as the result of human activities."
American Geophysical Union
"Based on extensive scientific evidence, it is extremely likely that human activities, especially emissions of greenhouse gases, are the dominant cause of the observed warming since the mid-20th century. There is no alterative explanation supported by convincing evidence."
American Medical Association
"Our AMA ... supports the findings of the Intergovernmental Panel on Climate Change’s fourth assessment report and concurs with the scientific consensus that the Earth is undergoing adverse global climate change and that anthropogenic contributions are significant." (2019)6
American Meteorological Society
"Research has found a human influence on the climate of the past several decades ... The IPCC (2013), USGCRP (2017), and USGCRP (2018) indicate that it is extremely likely that human influence has been the dominant cause of the observed warming since the mid-twentieth century." (2019)7
American Physical Society
"Earth's changing climate is a critical issue and poses the risk of significant environmental, social and economic disruptions around the globe. While natural sources of climate variability are significant, multiple lines of evidence indicate that human influences have had an increasingly dominant effect on global climate warming observed since the mid-twentieth century." (2015)8
The Geological Society of America
"The Geological Society of America (GSA) concurs with assessments by the National Academies of Science (2005), the National Research Council (2011), the Intergovernmental Panel on Climate Change (IPCC, 2013) and the U.S. Global Change Research Program (Melillo et al., 2014) that global climate has warmed in response to increasing concentrations of carbon dioxide (CO2) and other greenhouse gases ... Human activities (mainly greenhouse-gas emissions) are the dominant cause of the rapid warming since the middle 1900s (IPCC, 2013)." (2015)9
SCIENCE ACADEMIES
International Academies: Joint Statement
"Climate change is real. There will always be uncertainty in understanding a system as complex as the world’s climate. However there is now strong evidence that significant global warming is occurring. The evidence comes from direct measurements of rising surface air temperatures and subsurface ocean temperatures and from phenomena such as increases in average global sea levels, retreating glaciers, and changes to many physical and biological systems. It is likely that most of the warming in recent decades can be attributed to human activities (IPCC 2001)." (2005, 11 international science academies)
10
U.S. National Academy of Sciences
"Scientists have known for some time, from multiple lines of evidence, that humans are changing Earth’s climate, primarily through greenhouse gas emissions."11
U.S. GOVERNMENT AGENCIES
U.S. Global Change Research Program
"Earth’s climate is now changing faster than at any point in the history of modern civilization, primarily as a result of human activities." (2018, 13 U.S. government departments and agencies)12
INTERGOVERNMENTAL BODIES
Intergovernmental Panel on Climate Change
“Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia. The atmosphere and ocean have warmed, the amounts of snow and ice have diminished, and sea level has risen.”13
“Human influence on the climate system is clear, and recent anthropogenic emissions of greenhouse gases are the highest in history. Recent climate changes have had widespread impacts on human and natural systems.”14
OTHER RESOURCES
List of Worldwide Scientific Organizations
The following page lists the nearly 200 worldwide scientific organizations that hold the position that climate change has been caused by human action.
List of Worldwide Scientific Organizations - Office of Planning and Research
U.S. Agencies
The following page contains information on what federal agencies are doing to adapt to climate change.
https://www.c2es.org/site/assets/up...daptation-what-federal-agencies-are-doing.pdf
It’s important to remember that scientists always focus on the evidence, not on opinions. Scientific evidence continues to show that human activities
climate.nasa.gov