Historically scientists are not known for making shit up on a grand scale to make money, however corporations have been known to do this.An example of this is the tobacco indusrty who denied the science for years because it would cost them in sales.The oil companies are pumping billions into a campaign to discredit the science.
Over 95% of climatalogists support the truth that the planet is heating up. Of all the peer review journal reports on global warming not one says it is not caused by man. However the main stream media gives disproportinate coverage to the deniers.