The quality of a low-carbohydrate or low-fat diet may matter more than the amount of carbohydrates or fat consumed when it comes to reducing heart disease risk, according to a new study published in JACC, the flagship journal of the American College of Cardiology. Researchers found that versions of both diet patterns emphasizing macronutrients from healthy foods were associated with a lower risk of coronary heart disease (CHD), while versions high in refined carbohydrates and animal products were linked to higher risk and adverse metabolic profiles

Gradually increasing the price of fossil fuels is considered a key element of effective climate policy – and yet it remains the subject of bitter controversy. In a new book, experts from the Potsdam Institute for Climate Impact Research (PIK) explain this concept and correct false perceptions. The publication (in German) is aimed at professionals and laypeople who want to gain a thorough understanding of the topic. It is available in print from Springer Gabler and can be downloaded free of charge as a PDF and e-book.

In 2016, Poland introduced a nationwide policy eliminating all out-of-pocket costs for prescription drugs prescribed by healthcare professionals to individuals aged 75 and older. A new study published in Health Economics finds that the policy reduced average out-of-pocket medication spending by 23% and cut catastrophic drug expenses by 62%, indicating substantial financial protection during major health shocks.

A new study sheds light on how farmer-led collaboration can help create the conditions to address biodiversity loss in agricultural landscapes.

Cash transfer programs, which provide money directly to recipients, are growing in the United States, but face significant scrutiny, with questions over their value. In addition, some contend that these payments can lead to harm—recipients, they claim, will use the cash to immediately buy alcohol or drugs, leading to injury or death. However, a new 11-year study of a long-standing cash-transfer program in Alaska finds no evidence that direct cash payments increase the risk of traumatic injury or death.

UK electric vehicles and heat pumps have not yet delivered any proven carbon savings and may offer little benefit even with a decarbonised grid, according to a major new analysis by researchers at Queen Mary University of London. The study argues that current net‑zero policy is “misplaced”, with the UK prioritising electrification before it has enough clean power to support it.