The Rainbow Papaya in Hawaii is a great example of how biology solved a devastating problem that nature created and chemicals could not fix. It put GMOs, the successor to mutagenesis, on the map worldwide, and today billions of meals have been served using GMO science.

Though lead levels across America are far safer than even a generation ago, the lack of a solid answer on what the safe level is leads to concern that leaching, such as from water pipes, could be harmful. 

As the crisis in Flint, Michigan a few years ago showed, the public can be put in a panic easily, and politicians will use public health concern for advantage, even after their decisions to stop using the science that had protected the public caused the problem.

When the Obama administration's Food and Drug Administration gave way to the Trump era, there were a number of positive changes in how the federal government treated smoking cessation tools that were not controlled by large corporations.

They rolled back the arbitrary framing that claimed all tobacco was as harmful as cigarettes - except Big Pharma products like nicotine patches and gums. They accepted that adults should have all options available for quitting cigarettes or at least reducing harm.

Methane detection in the Martian atmosphere haa been a source of debate because methane means a greater possibility for habitability and may even be a signature of life., but spacecraft and telescopic observations from Earth reported no detections of methane, at least not outside the realm of statistical wobble.

Finally, independent measurements report a firm detection in the Martian atmosphere above Gale Crater on 16 June 2013 by the Planetary Fourier Spectrometer onboard Mars Express, one day after the in situ observation of a methane spike by the Curiosity rover.

Air in England, the United States and most of Europe is now cleaner than it's been in over a century, but you wouldn't know that if you read populist epidemiology claims, which have redefined pollution from PM₁₀, dangerous soot like black carbon, to PM_2.5, which you can only detect with an electron microscope, and even down to PM_1.0, which might as well be virtual pollution.

The U.S. Food and Drug Administration today approved Mayzent (siponimod) tablets by Novartis to treat adults with relapsing forms of multiple sclerosis (MS), to include clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease.