In the 1970's there was research that indicated that we could be going into another ice age. Now scientists are declaring that the research done then was faulty and that we are now suffering global warming. Obvious conclusion is that modern scientists are blessed with greater accuracy, despite indications that they have 'massaged' data, than their counterparts of thirty years ago. To me it appears that these scientists are doing what all scientists are good at, justifying their funding. To see the contradictary research published on the effects of various foods and drinks must surely indicate that scientific findings should be taken with a large pinch of salt, unless they can get funding to prove otherwise.