An economist spent decades arguing money wouldn’t help schools. His new paper finds it usually does.

“The paper, set to be published later this year, is a new review of dozens of studies. It finds that when schools get more money, students tend to score better on tests and stay in school longer, at least according to the majority of rigorous studies on the topic.”

“The findings seem like a remarkable turnabout compared to prior research from Hanushek, who had for four decades concluded in academic work that most studies show no clear relationship between spending and school performance. His work has been cited by the US Supreme Court and pushed a generation of federal policymakers and advocates looking to fix America’s schools to focus not on money but ideas like teacher evaluation and school choice.
Despite his new findings, Hanushek’s own views have not changed. “Just putting more money into schools is unlikely to give us very good results,” he said in a recent interview. The focus, he insists, should be on spending money effectively, not necessarily spending more of it. Money might help, but it’s no guarantee.

Hanushek’s view matters because he remains influential, playing a dual role as a leading scholar and advocate — he continues to testify in court cases about school funding and to shape how many lawmakers think about improving schools.”

“The context matters, they say. Sometimes money is spent well; sometimes it’s spent poorly. Sometimes the effects are big; other times they are small or nonexistent. Just focusing on the overall effect masks this variation.”

“Other researchers agreed that the variation in results is important, but that shouldn’t mean ignoring the overall impact. “The average effect still matters,” said West, the Harvard professor.”

Studies Link Marijuana Legalization to All Sorts of Positive Public Health Outcomes

“Legalization linked to fewer suicides, traffic fatalities, and opioid deaths. A new paper on the public health effects of legalizing marijuana finds “little credible evidence to suggest that [medical marijuana] legalization promotes marijuana use among teenagers” and “convincing evidence that young adults consume less alcohol when medical marijuana is legalized.””

Is the ‘Climate Time-Bomb’ Really Ticking Toward Imminent Catastrophe?

“What is the supposed looming climate catastrophe? Exceeding the threshold in which global average temperature rises 1.5 degrees Celsius above the 1850-1900 baseline. That threshold was established in the 2015 Paris Climate Change Agreement, which aims to hold “the increase in the global average temperature to well below 2°C above pre-industrial levels and pursuing efforts to limit the temperature increase to 1.5°C above pre-industrial levels.” In order to have a 50/50 chance of achieving that goal, the new report calculates humanity must cut its greenhouse gas emissions (chiefly carbon dioxide) basically in half by 2030. Secretary-General Guterres asserted that the report shows that “the 1.5-degree limit is achievable.”
Will humanity inevitably suffer a catastrophic fall if we go over the supposed 1.5 degrees Celsius climatic cliff in 2030? No”

“It is the case that the world’s average temperature is about 1.1 degrees Celsius higher than it was between 1850 and 1900. The bulk of that temperature increase largely stems from burning fossil fuels that have loaded up the atmosphere with extra heat-trapping carbon dioxide. Atmospheric carbon dioxide stood at about 285 parts per million around 1850, rising to about 316 ppm by 1958 and is now at 420 ppm.

The report states that the evidence has “strengthened” that man-made global warming is responsible for observed changes in extremes such as heat waves, heavy precipitation, droughts, and tropical cyclones. Recent studies do show that the intensity, frequency, and duration of heat waves have increased since the 1950s and that the frequency of heavy rainfall events has also risen. On the other hand, clear evidence for changes in global trends in meteorological drought is lacking and global tropical cyclone accumulated energy (a measure of the combined duration and strength of tropical cyclones) is not increasing.”

“the report does not put a dollar figure on the losses that are projected to result from unmitigated climate change. Perhaps, as the report asserts, that is because “cost-benefit analysis remains limited in its ability to represent all avoided damages from climate change (high confidence).” Still, the report does note, “Even without accounting for all the benefits of avoiding potential damages the global economic and social benefit of limiting global warming to 2°C exceeds the cost of mitigation in most of the assessed literature (medium confidence).” A discreet footnote observes, “The evidence is too limited to make a similar robust conclusion for limiting warming to 1.5°C.” So the costs of trying to keep temperatures from increasing by 1.5 degrees Celsius might be greater than the benefits?”

UN climate report shows world is flying blind into the storm

“Extreme weather events of the past few years — including the 2022 heat wave that sent temperature records tumbling across much of Europe, and the floods that devastated Pakistan last year — have surprised some of the world’s top climate scientists with just how far they sat outside the normal range.
Experts still know relatively little about when and where these types of extreme climate events will happen. Or what happens when two events, like a drought and a heat wave, hit one place simultaneously. That’s because scientists have tended to look at broader averages across regions, rather than the most intense extremes in specific locations.

“We haven’t asked the models [to] come up with an outrageously high temperature number, like 50 degrees in Canada” — a mark reached during a heat wave in 2021 — “and work out how likely that is or if that’s possible,” said Friederike Otto, an author of the IPCC report and senior lecturer at Imperial College London. “And I think that’s why these are surprises.””

Leading climate scientists send the grimmest of warnings

“he U.N. Intergovernmental Panel on Climate Change, an international body made up of the world’s leading climate scientists. Its latest report on the science and consequences of global warming was seven years in the making, writes POLITICO’s E&E News reporter Chelsea Harvey.
“The report clearly notes that the effects of climate change grow worse and worse with every little incremental bit of additional warming,” Chelsea told Power Switch. “So it’s imperative to reduce emissions as swiftly as possible in order to limit even worse outcomes in the future as much as we can.”

The assessment sends a warning that the effects of climate change are already happening. And humanity is not on track to curb carbon pollution from fossil fuel production, agriculture and other sources enough to halt warming at 1.5 degrees Celsius, the most ambitious international target.

In fact, at the rate the world is burning carbon, the 1.5 C threshold will likely arrive in the next decade.

The world has already warmed 1 degree since the preindustrial era. Wildfires, floods, droughts and hurricanes are growing more severe. Sea levels are swelling as coastal communities and island nations face existential threats from encroaching waters.

Intensifying droughts and agricultural disruptions are creating food and water insecurity. Infectious diseases are surging. And people around the world are increasingly being displaced by climate-fueled disasters.

Human mortality rates from climate disasters were 15 times higher in highly vulnerable regions of the world, compared with more developed places, the report found.”

Why Most Gun Laws Aren’t Backed Up By Evidence

“The Dickey Amendment, first attached to the 1996 omnibus spending bill, for example, famously prevented the Centers for Disease Control and Prevention from funding gun violence studies for decades. A new interpretation of that amendment in 2018 changed that, but Dickey wasn’t the only thing making it hard to study gun violence.
Instead, the researchers told me, the biggest impediment to demonstrating whether gun control policies work is the way politicians have intentionally blocked access to the data that would be necessary to do that research.”