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Do Older Dads Have Healthier Kids?
Men who chose to have children later in life have gotten a lot of heat recently, with research churning up evidence that the older a man’s age at time of reproduction, the greater the risk of autism, schizophrenia, and other disorders in their kids. But a new study, published in Proceedings of the National Academy…
Nuclear Plants Could Fuel Hydrogen Future
Using hydrogen as a clean, renewable source of energy could free us from fossile fuels. But hydrogen atoms don’t exist alone in nature; they’re always bound to another atom. Think of water, which has hydrogen and oxygen. Splitting hydrogen atoms from the oxygen takes power. And if that electricity comes from a natural gas or…
Polar Bears, Brown Bears Interbreed to Cope With Climate Change
Polar and brown bears diverged between 4 million and 5 million years ago, but they continued to interbreed when the climate warmed. Now, there is evidence that it is happening again.
The Iron in Our Blood That Keeps and Kills Us
In this search for the origin of one of the world’s most common genetic diseases, emerging research in evolutionary medicine raises new questions about our history, development, and future as a species.
China Sets Up U.S. Conflict By Ruling Out New Climate ‘Regime’
China, India, South Africa and Brazil said a climate deal planned for 2020 won’t be a “new regime,” threatening confrontation with the U.S. which wants to eliminate a firewall between developed and developing nations. The four nations reined in expectations for the Durban Platform, a mandate agreed last December at United Nations treaty talks in…
Voting in Plain Sight
Of all the domestic policy differences between the Bush and Obama administrations, just about the sharpest and most telling may be their opposite responses to the drive by Republican-dominated states to require voters to present photo identification at the polls. The Bush administration thought photo ID was a dandy idea. The Obama administration recognizes it…