As smoking continues its inexorable southward journey toward single-digit percentages of populations being smokers, it’s common to hear people say the smokers who remain are all “hard core”, heavily dependent smokers, impervious to policies and campaigns.

The argument runs that the ripe fruit of less addicted smokers have long fallen from the tree, and that today anyone still smoking will be unresponsive to the traditional suite of policies and motivational appeals. This argument is known as the “hardening hypothesis”.

Three prime ministers and nearly three years ago, “first bloke” Tim Mathieson caused a brouhaha with his advice on prostate cancer screening:

We can get a blood test for it, but the digital examination is the only true way to get a correct reading on your prostate, so make sure you go and do that, and perhaps look for a small Asian female doctor is probably the best way.

It was the “small Asian female” part of this statement that attracted criticism, but what of the rest of his advice?

Since publishing our study on “A scientific basis for regulation deep-sea fishing by depth“ we’ve been subjected to criticism online and in print from fisheries organizations and most recently on this website in an article by Magnus Johnson.

. Clothing brand Patagonia gives 1% of its sales “to support environmental organisations around the world”. Carpet-maker Interface takes an “aggressive approach” to reach its goal to source 100% of its “energy needs from renewable sources by 2020”. Nudie Jeans meanwhile, repairs, reuses and recycles its denim products, as well as using organic cotton to produce them in the first place.

Colleges and universities in the United States remain among the most prestigious institutions of higher education in the world. But, concerned about rising costs and the job prospects of young men and women with undergraduate degrees, Americans these days tend to view education as more of a business proposition.

As a result, conversations on the broader value of a liberal arts degree have been overshadowed. Furthermore, an awareness of the shortcomings of graduate education, especially in PhD programs, and its implications for higher education as well as for American society in general have been entirely absent in these conversations.

Most people are able to recognize the smell of “death” when they encounter a dead animal on a farm or a roadkill.

But despite its distinctive scent, few know why it actually smells the way it does. Even forensic scientists may not have identified all of the compounds behind it yet – they are still in the process.

Understanding the pattern of change of the chemicals that make up the scent during the process of decomposition could be of huge benefit to forensic science. Not only could it help determining the time of death of a victim, it could also lead to more scientifically rigorous training of cadaver dogs.