Science 2.0

Hank Campbell

Hank Campbell

Hank Campbell is an American science writer, author of the bestselling book 'Science Left Behind', and the founder of Science 2.0®, the world's largest independent science communications site. His work has appeared in the Wall Street Journal, USA Today, Wired, Chicago Tribune, CNN, and many more places.

RSS Feed
If You Care About Emissions, Rethink Urban Agriculture

If You Care About Emissions, Rethink Urban Agriculture

Urban/local/small ag is a feel-good fallacy. There is nothing wrong with wishful thinking and aspirations, we all have harmless beliefs that get into our brains. Some home ag is clearly ridiculous - a $150 machine to grow $0.25 worth of herbs is a gimmick for the rich - but mostly it's good, slow exercise or at least good to not be on a tablet watching TikTok videos so China can harvest your personal data. 

Can World Hunger Ever Be Eliminated? Not Using Europe Or The UN

Can World Hunger Ever Be Eliminated? Not Using Europe Or The UN

Wealthy countries with natural 'breadbaskets' - places where it is easy to grow food - have so much abundance they can put special labels like 'organic' on tens of thousands of products and charge more and people will spend $100 billion on them.Other countries need science, yet it is often the case that regions like Europe dictate what science poorer nations can use. Disagree, and you cannot sell in Europe. Then they mobilize relief efforts for the countries they keep poor. When poor people are geopolitical pawns for rich ones, can hunger ever be eliminated?

Misinformation Scholarship Is Not New, It Just Got More Attention When The Right Did It

Misinformation Scholarship Is Not New, It Just Got More Attention When The Right Did It

Misinformation scholarship is not new, it just got more attention due to Brexit and Trump - and that's due to the left finally focusing on an issue when it's happening on the other side.Prior to 2021 there was little concern among the left about the anti-vax movement - because it was dominated by their tribe. Academic progressive waved away overwhelming CDC data showing a clear apolitical demarcation by trotting out surveys showing the denial was not that small.Yet if you asked who's more likely to deny evolution, the right or left, the left reflexively declared it was Republicans. Except the different between the left and right on evolution was only 9 points - far smaller than the denial of vaccine by the left.

Black Mental Health Is Basically Ignored By AI Models

Black Mental Health Is Basically Ignored By AI Models

Large Language Models, colloquially called Artificial Intelligence by companies selling rebranded autocomplete tools to other companies and the public, can automate a lot of entry-level projects but when it comes to anything more complex the flaws are quickly seen.When Black people using social media exhibit possible depression in their prose, a paper claims LLM/AI tools don't detect it as easily as they do other skin colors.

Plank It: Meta-Analysis Shows Isometric Exercises Help Lower Blood Pressure The Most, By A Lot

Plank It: Meta-Analysis Shows Isometric Exercises Help Lower Blood Pressure The Most, By A Lot

Risk factors like salt and sugar intake and high blood pressure for heart attacks and disease need constant rethink if they are going to be more than folk wisdom.Low-salt and sugar-free have too many vested interests to get critical thinking on how valid population-level statistics are for individuals, and 'high' blood pressure rarely gets questions about how reliable the correlation was that picked 130/85 mmHg (millimeters of mercury) as high blood pressure for everyone. Thosa blood pressure numbers are the clunkily-named systolic on top over the diastolic below. The top is the pressure in arteries as the heart beats while the bottom is the pressure at rest.(1)

What Will It Take For Real Farming In Space?

What Will It Take For Real Farming In Space?

If humans in space are happening any time soon, it will be despite government involvement rather than because of it. NASA couldn't even build a telescope without going 25 years and 1,000 percent over budget. By the time all cultural parties pick away at a manned space program, it will be so expensive and time-costly it won't be worthwhile, and the private sector will throw all that baggage out and just do it.The James Webb Space Telescope program showed NASA is incapable of doing Big Engineering now, but they can put cute robots on other planets, and fund smaller projects, like how we might grow plants. Early results for how monitors that plants can wear and will stretch as plants grow are due to a NASA grant, and that is a very good thing.

Social Media Brings Out Our Baser Natures - Anger Is Rising In Democracies

Social Media Brings Out Our Baser Natures - Anger Is Rising In Democracies

Like old media such as newspapers and televisions, content on social media is tailored toward audience engagement. Television and newspapers have long known that 'dead bodies sell' but in social media it can be sold in real-time. It has sped up information - and cynicism. Fifteen years ago Reuters was caught augmenting photos of an Israeli attack on terrorists so it looked like more smoke and destruction than actually occurred and few in media were bothered, more recently outlets pulled a photo of British Princess Kate of Wales because it had been retouched. Only after the audience flagged it, though.

Losing Weight Can't Cause Cancer But Welcome To Modern Epidemiology

Losing Weight Can't Cause Cancer But Welcome To Modern Epidemiology

As the century turned, the science community began to become critical of a once-honored field; epidemiology.  If you are not familiar with it, it is people who correlate causes to outcomes. They don't show it, they usually are not scientists, but they look for links and then if those look interesting scientists will follow up on it.This was an occupation once so conservative and evidence-driven that they were the last to accept that heart disease and cancer might have a hereditary factor. When epidemiologists showed that smoking causes lung cancer the data were so overwhelming and comprehensive that Big Tobacco began to stockpile money for the inevitable lawsuits because they had denied it.

Reduce School Violence By Eliminating Grades, Say Academic Psychologists

Reduce School Violence By Eliminating Grades, Say Academic Psychologists

One of the few things that can get a government union employee in a mandatory industry like education fired is hitting a student. Yet the link between increased tolerance and less accountability for students has correlated to increased violence by teachers. If there are no repercussions for behavior, behavior gets worse.Everyone seems to know this except academic psychologists, who instead argue that grades are the problem. Don't want to be assaulted? Don't have accountability for any student who will suffer no lasting repercussions if they assault you while if you defend yourself you will be fired, go to jail, be sued, and vilified by the internet for eternity.

Carbon Offsets Won't Work Until There Is Science In How Trees Are Planted

Carbon Offsets Won't Work Until There Is Science In How Trees Are Planted

Former Vice-President Al Gore has a giant mansion but buys carbon offsets to mitigate the damage. Do they work?It depends, and that means it is unlikely. Lots of corporations dove into the carbon offset market, Mr. Gore made hundreds of millions of dollars investing in them, but there is no standard beyond 'we will plant this many trees.' The story is certainly compelling. There is no guilt about a mansion or private plane if you pay someone to plant trees that absorb carbon dioxide emissions equal to what you burned and create wildlife habitats and nice views for humans in the process.

Did Environmental Working Group Manufacture A Study Just To Sue Quaker Oats?

Did Environmental Working Group Manufacture A Study Just To Sue Quaker Oats?

On February 15th, the litigation outfit known as Environmental Working Group, most famous for using public USDA data (although excluding pesticides from the organic food companies which fund them) to compile a 'Dirty Dozen list' of foods which contain pesticide residues (100 percent of them) but that is nonetheless reliably rewritten by allied journalists in progressive newspapers, paid to publish a

Gender Bias: Both Men And Women Prefer To See Women In Google Image Searches

Gender Bias: Both Men And Women Prefer To See Women In Google Image Searches

If Google image search results overwhelmingly returned results showing men, that would be evidence that ending gender bias still has a long way to go. In the bias community, results showing women are the same thing.And the authors of a new paper say female and male gender associations are more extreme among Google Images than within text from Google News; text is slightly more focused on men than women, this bias is over four times stronger in images.