There is no clear correlation between tax cuts for high earners and economic growth, according to a new study by the Congressional Research Service. The findings are pertinent to a central debate in the presidential election, wherein President Obama is pushing to end the Bush-era tax cuts on high incomes, while his Republican challenger Mitt…
First there was the “impact factor.” Then came the “h-index.” Now, for those who believe that scientific prowess can be measured by statistical metrics, comes the Acuna-Allesina-Kording formula. The formula, outlined in the journal Nature, is intended to improve upon the h-index—a tally of a researcher’s publications and citations—by adding a few more numerical measures…
Every time a new sea ice extent record for Arctic melting is broken, the same question comes up: how long until it’s gone? That is, how long will it be before the Arctic Ocean is functionally ice-free in the summer, legitimately opening the once-fabled Northwest Passage? The fact is, we don’t know. Climate models continue…
A toddler’s “slave footprint” – how much forced labor in the global human trafficking economy is used to produce all her “stuff” – can be calculated on a new human trafficking website. And the results can surprise parents. It turns out that many of the toys and baby products that fill American family homes are…
There is enough energy available in winds to meet all of the world’s demand. Atmospheric turbines that convert steadier and faster high-altitude winds into energy could generate even more power than ground- and ocean-based units. New research from Carnegie’s Ken Caldeira examines the limits of the amount of power that could be harvested from winds,…
Almost 50 percent of global investors in a survey said government efforts to combat climate change will have little effect on corporate profits, while most say global warming is a danger to the planet. Actions to limit pollution will have “not much impact” on profitability, according to 49 percent of respondents in the Bloomberg Global…
With the race to the White House heating up, it raises the question: where do the presidential candidates stand on global warming? In short, Obama is a global warming “believer” but has provided little substance to back his conviction and seldom talks about it. Romney, on the other hand, presents a wavering, sometimes mocking assessment…
Small increases in temperature may have reduced the industrial and agricultural production of poor countries, according to a study by U.S. economists. Higher temperatures may also have contributed to political instability in these countries — defined as those with below-median per capita income, adjusted for the purchasing power of the country’s currency — according to…
So many scientific studies are making incorrect claims that a new service has sprung up to fact-check reported findings by repeating the experiments. A year-old California, company, Science Exchange, announced its “Reproducibility Initiative,” aimed at improving the trustworthiness of published papers. Scientists who want to validate their findings will be able to apply to the…
A first-of-its-kind “crowdsourced and crowdfunded” archaeological dig at Cambridgeshire’s Flag Fen has finished. It is the site of a Bronze-Age “causeway” of millions of preserved timbers that are rotting away as groundwater recedes from the site. The not-for-profit Digventures team raised £27,000 from members of the public who then joined in an expert-led dig to…