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Notes from an excavation

Russell L. Ciochon and his team are in Indonesia investigating the geological source and age of one of the world's biggest caches of Homo erectus.

Food: The growing problem

World hunger remains a major problem, but not for the reasons many suspect. Nature analyses the trends and the challenges of feeding 9 billion by 2050.

Food: The global farm

With its plentiful sun, water and land, Brazil is quickly surpassing other countries in food production and exports. But can it continue to make agricultural gains without destroying the Amazon? Jeff Tollefson reports from Brazil.

Ocean greenery under warming stress

A century of phytoplankton decline suggests that ocean ecosystems are in peril.

Food: Inside the hothouses of industry

Feeding the world is going to require the scientific and financial muscle of agricultural biotechnology companies. Natasha Gilbert asks whether they're up to the task.

News briefing: 23–29 July 2010

The week in science.

Retraction recommended for enzyme-chip paper

Reactome array study should not have been published, says ethics committee.

Fears over Europe's GM crop plan

A proposal to let nations opt out of growing European-approved GM varieties is under fire from all sides.

Protein mapping gains a human focus

Next phase of the US Protein Structure Initiative enlists biologists to help crack tough human receptors.

US charges scientist with economic espionage

Could publishing a paper make you a spy?

A closer look at cosmic impacts

Moon-crater survey could improve Solar System surface-dating methods.

Food: An underground revolution

Plant breeders are turning their attention to roots to increase yields without causing environmental damage. Virginia Gewin unearths some promising subterranean strategies.

Photons meet with three-way split

Method that generates photon triplets could be a boon for quantum information.

Freedom of spill research threatened

Scientists call for impartial funding and open data as BP and government agencies contract researchers.