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.

As measles outbreaks spread across the U.S., our new look at how information about vaccine safety and reliability spreads online suggests that the tide may be turning against the anti-vaccination movement.

Everyone in 2019 likes to claim their beliefs are grounded in evidence.  The most anti-science groups, from the journalism department at New York University to Greenpeace, still claim to have evidence-based decision-making behind their political or financial agendas. It's no different in the "raw" pet food market, but it's harmless posturing to wrap yourself in the veil of science unless you are actually claiming to be scientific when you poison people or their pets.
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 PM2.5, which you can only detect with an electron microscope, and even down to PM1.0, which might as well be virtual pollution.
The Green New Deal is the name given to a half-formed quasi-rational publicity stunt formed by the New Guard in the House of Representatives. 

Deniers for hire like Organic Consumers Association, which are opposed to agriculture (not to mention their endorsement of anti-vaccine activists and endorsement of opponents of all science) say it will be great. And it will be, for their clients. That poor people will starve or freeze to death if city politicians define "sustainable" isn't really a concern, because the wealthy elites who give to environmental groups will be fine.

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.

Discussion of the periodic table of elements often ends with simply invoking Dmitri Mendeleev, the Russian chemist who formulated the Periodic Law and used it to correct the properties of some already discovered elements, not to mention predicting the properties of eight elements yet to be discovered.

But instead of being foundational, it would have been just a quaint paper in a mining journal. had its development ended there. Mendeleev had been appointed him professor of general chemistry in 1867 and was required to lecture on inorganic chemistry. Lacking a good Russian textbook, he decided to write one, and that required truly arranging the chemical elements, something that had eluded other scholars.

I was astonished to find out that the BBC linked to this “paper” in a recent article about eco-anxiety without explaining to the reader that it is just “crap”. There I'm quoting the distinguished climate scientist Michael Mann, director of the Earth System Science Center at Pennsylvania State University. This BBC article is here:

All they say about it is