The world population will hit 7 billion on Halloween this year, according to a guesstimate from the United Nations. So, should you be scared?
At the end of the Cretaceous period some 65 million years ago, an asteroid slammed into Mexico’s Yucatan Peninsula, causing severe but selective extinction. While that is widely accepted, it has remained unclear exactly what the mechanisms were that caused extinction of ocean-dwelling organisms. Proposed explanations include global darkness due to blocking of sunlight with…
Humans hunted Australia’s giant vertebrates to extinction about 40,000 years ago, the latest research published in Science has concluded. The cause of the widespread extinction has provoked much debate, with climate change being one theory. However, scientists studied dung samples from 130,000 and 41,000 years ago, when humans arrived, and concluded hunting and fire were…
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…
So far, conventional solutions to global warming — new government policies and changes in individual behavior — haven’t delivered. And more radical options, such as pumping sulfur into the atmosphere to counteract warming, pose a great deal of risk. There may be another route to avoid the potentially disastrous effects of climate change: We can…
To build a planet you need lots of rubble and that means lots of heavy elements – stuff more massive than atoms of hydrogen and helium. The elemental composition of the collapsing nebula that gave birth to the Sun and the planets of the Solar System included things like iron, silicon and magnesium that form…
The search for the perfect alliance between science and technology has married quantum computing to the future of IT – the cloud. Researchers have used quantum mechanics to encrypt heavy-duty number-crunching computing, thereby removing a major obstacle in the adoption of the cloud for many enterprises – how safe is my data when it’s hosted…