Reader’s letter: The input of experts is questioned

In his letter (Science is never settled — really?) N. Roulston demonstrates news versus classic Groupthink behaviour. I am frankly appalled that it is considered acceptable that “children are taught scientific truths established beyond doubt by giants …

Reader’s letter: Several causes of climate change

While it is indisputable that carbon dioxide concentrations are increasing, climate change may be a combination of several causes, since other phenomena have been measured and well documented. For example, sunspots and solar flares with their associate…