Scientists had struggled to find the trigger for so-called Colony Collapse Disorder (CCD) that has wiped out an estimated 10 million beehives, worth $2 billion, over the past six years. Suspects have included pesticides, disease-bearing parasites and poor nutrition. But in a first-of-its-kind study published today in the journal PLOS ONE, scientists at the University of Maryland and the US Department of Agriculture have identified a witch’s brew of pesticides and fungicides contaminating pollen that bees collect to feed their hives. The findings break new ground on why large numbers of bees are dying though they do not identify the specific cause of CCD, where an entire beehive dies at once.

People often think that the big city is a dangerous place: they worry that they might get murdered, for instance. Being killed on purpose is more likely in town, according to new research, but it is so rare compared to dying in an accident of some type that in fact you would be much more likely to die unexpectedly in the countryside - in America, anyway.

I studien har man undersökt 27.000 män mellan 45 och 82 år under sexton års tid. Den visar att även om man räknar bort faktorer som fysisk aktivitet, sömn, matvanor och vikt så ökar risken dö i hjärtinfarkt eller någon annan hjärtsjukdom med 27 procent om man hoppar över frukosten.

For 75 years, Finland's expectant mothers have been given a box by the state. It's like a starter kit of clothes, sheets and toys that can even be used as a bed. And some say it helped Finland achieve one of the world's lowest infant mortality rates.

The levels of exposure to radiation following the leaks and explosions at the earthquake-damaged Fukushima Daiichi nuclear power station in 2011 were so low that they led today to this important conclusion from experts convened in Vienna by the United Nations Scientific Committee on the Effect of Atomic Radiation: It is unlikely to be able to attribute any health effects in the future among the general public and the vast majority of workers.

If you guessed “China,” you were wrong. The answer is Vietnam. The country’s appetite for rhino horn is so great that it now fetches up to $100,000/kg, making it worth more than its weight in gold. (Horns average around 1-3 kg each, depending on the species.)

In the past few decades, the fortunate among us have recognised the hazards of living with an overabundance of food (obesity, diabetes) and have started to change our diets. But most of us do not yet understand that news is to the mind what sugar is to the body. News is easy to digest. The media feeds us small bites of trivial matter, tidbits that don't really concern our lives and don't require thinking. That's why we experience almost no saturation. Unlike reading books and long magazine articles (which require thinking), we can swallow limitless quantities of news flashes, which are bright-coloured candies for the mind. Today, we have reached the same point in relation to information that we faced 20 years ago in regard to food. We are beginning to recognise how toxic news can be.

The velomobile -- a recumbent tricycle with aerodynamic bodywork -- offers a more interesting alternative to the bicycle for longer trips. The bodywork protects the driver (and luggage) from the weather, while the comfortable recumbent seat eases the strain on the body, making it possible to take longer trips without discomfort. Furthermore, a velomobile (even without electric assistance) is much faster than an electric bicycle.

Using nuclear power in place of fossil-fuel energy sources, such as coal, has prevented some 1.8 million air pollution-related deaths globally and could save millions of more lives in coming decades, concludes a study. The researchers also find that nuclear energy prevents emissions of huge quantities of greenhouse gases. These estimates help make the case that policymakers should continue to rely on and expand nuclear power in place of fossil fuels to mitigate climate change, the authors say (Environ. Sci. Technol., DOI: 10.1021/es3051197).

Eighteen months after the nuclear meltdown in Fukushima, children who were not evacuated are found to have thyroid cysts and nodules. What will this mean for their future?

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