No evidence disproves it. There is some evidence which at face value may seem to contraindicate human activity as the primary cause of global warming, but that evidence is most likely simply misinterpreted, in view of all the evidence supporting the hypothesis.
One example was a recent study on cosmic rays. Editors at the Wall Street Journal jumped on this study as "proving" humans could not be responsible for global warming, even though the authors of the study could show no long term variation in cosmic ray bombardment, nor any significant impact of cosmic rays upon actual climate. In point of fact, in the opening paragraphs of that very study the authors acknowledged the human contribution to greenhouse gas emissions and their impact upon the global climate.
No, not at all. There is no evidence that the global warming is affecting brown bears.
global warming?
There is no evidence that global warming is a myth. There has certainly been a lot of misinformation on the subject, often from vested interests, but the clear consensus of climate scientists is that global warming is real and that human activities are substantially the cause of global warming since the Industrial Revolution.
There is no evidence that "global warming" is causing birds to migrate differently.
No, that would probably be evidence for global cooling.
On May 19, 1997, in a speech at Stanford University, Browne declared that evidence suggested that global warming could be real. He argued that evidence that burning of fossil fuels was contributing to global warming
Extremely conservative groups tend to be more critical of the evidence of global warming. This has more to do ideology than idiocy, even though over 97% of scientists acknowledge the existence of of global warming.
The work of 15 climate scientists is helping to educate the public about the overwhelming scientific evidence for human-caused global warming.
At the poles we see that the icecaps seen to be melting.
I am pretty sure the deployment of nuclear weapons on Hiroshima and Nagasaki did not affect global warming. There is no evidence to suggest that the deployment of nuclear weapons in the second World War affected global warming in any way.
The overwhelming consensus among climate scientists is that global warming is real and primarily caused by human activities, such as the burning of fossil fuels. The evidence for climate change is supported by data from temperature records, melting ice caps, and shifting weather patterns. It is important to rely on scientific evidence and expert consensus when evaluating issues like global warming.
The present global warming phase began with a gradual rise in average global temperatures after the Industrial Revolution, and accelerated rapidly from the mid 1970s onwards. Temperatures rose 0.75 degrees Celsius over the twentieth century and estimates for the the twenty first century are generally in the range of between 2 and 6 degrees Celsius. The global warming trend is very real. Current warming did start about 10,200 years ago and all but 0.2 degrees of this warming happened before 1934. The recent upward trend is very real and evident. Some question whether recent localised cold weather in the north-eastern United States disproves climate change, forgetting that weather and climate (especially global climate) are two very different things. Scientific evidence collected from right around the world presents a very worrying picture of global warming.