Scientists have identified the largest ancient Mayan dam, constructed from stone and holding back around 20 million gallons of water in a man-made reservoir. The Tikal dam stretched more than 260 feet in length and was 33 feet high, and sheds new light on how the Maya conserved their natural resources for over 1,500 years….
Big scientific discoveries, such as the God particle, can have great Earthly potential that must be shared by the world’s poor. The announcement from CERN that we now have compelling evidence for the Higgs boson — the elementary particle that, according to theory, allows other particles to obtain mass — is widely acknowledged as a…
In his most recent column in The New York Times, David Brooks laments the results of a study led by Robert Putnam, a Harvard political scientist, which demonstrate an “inequality of opportunity” between rich and poor children in America. The children of the rich and poor, we’re told, are raised “in starkly different ways and…
The burning of fossil fuels emits some 35 billion metric tons of CO2 into the atmosphere every year. That has already begun to change the fundamental chemistry of the world’s oceans, steadily increasing their level of acidity. Projections from a new high-resolution computer model show that over the next 4 decades, the combination of deep-water…
The misconduct of the financial industry no longer surprises most Americans. Only about one in five has much trust in banks, according to Gallup polls, about half the level in 2007. And it’s not just banks that are frowned upon. Trust in big business overall is declining as well – 62% of Americans believe corruption…
Making progress on family planning will require not only principles and commitments, but successful implementation, which must include four crucial elements, says John May of the US-based think tank Centre for Global Development. Millions of women, particularly in developing countries, lack information on — and access to — family planning services. This not only jeopardizes…
Coral reefs may be able to recover from disaster, according to a study that provides a bit of reassurance about the future of these endangered ecosystems. Coral reefs around the world are at risk as the ocean’s temperature continues to rise. Those trends could kill not only coral but also the fish and other species…
Traffic is easing as more Americans are deciding to drive less, sell their cars or not buy one at all
Two safeguards for communities’ rights to resources can help implement the Nagoya Protocol, argues biodiversity specialist Krystyna Swiderska. As the recent UN Conference on Sustainable Development (Rio+20) showed, intergovernmental negotiations on the environment and development can be slow processes that lack ambition. But that is nothing new. One of the outcomes of the original Rio…
Inequality is growing in the United States, and social mobility is slowing. A study by the Pew Charitable Trusts found that 62 percent of Americans raised in the top one-fifth of the income scale stay in the top two-fifths; 65 percent born in the bottom fifth stay in the bottom two-fifths. Education, long praised as…