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Hank CampbellRSS Feed of this column.

I founded Science 2.0® in 2006 and since then it has become the world's largest independent science communications site, with over 300,000,000 direct readers and reach approaching one billion. Read More »

In the 1966 Harry Harrison novel "Make Room! Make Room!" concerns about population control were the driver of the plot and the storytellers were various people in New York City when the world has reached a population of 7 billion. You have probably never heard of the novel, but you likely have heard of the movie version, "Soylent Green", starring the incomparable Charlton Heston.
It's that time of the year, a few days until Christmas and you bought everything on that Amazon wishlist but it doesn't feel all that creative. If you are like me, masks everywhere can be a bit of a downer, so you want things you can order. These are not what I like to call "aspirational" gifts, the kinds of things parents want their children to want in order to feel like better parents. They are all good, I have watched, read, or used them all this year, so they aren't yet another 'how to make a piece of paper turn using flame' experiment science, they are actually enjoyable science. And technology. And science-fiction.
It is common in a polarized political climate to try and blame the other political party when missteps happen but most government employees are not political appointees, they are career bureaucrats, and sometimes care more about protecting their fiefdoms than in helping the public. 
There was a time when politicians worried about a "slippery slope" when it came to political actions. While dirty politics by individuals was always assumed - President Lyndon Johnson set the modern standard for that - overt actions by parties were more thoughtful. The reason was simple; once there was a precedent, the other party could do the same thing when they got into power.

That all changed this century.
A new study hopes to link long-term exposure to ambient air pollution and metabolic-associated fatty liver disease, a name change from non-alcoholic fatty liver disease because it is associated with obesity and type 2 diabetes.  
In 2021, there remains some confusion about the distinction between biological sex and gender. The fossil record only shows males and females, it does not show how those people, or even precursors of modern humans, felt about themselves. And fossil records only show what can actually be fossilized. Which is often just skeletal.

Nature can be more complex than that.

I almost always hunt in Pennsylvania and the rules say I can only shoot a buck early in the season. No does. The number of tines may vary each year in a maddening way - good luck seeing three on one side in Pennsylvania woods - but antlers mean a legal buck.

Except they don't always mean a male.