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Most people assume that a wave, being central to all the phenomena we observe, has a uniform definition. But defining this basic concept isn't so easy.
Showing that a genetically modified food is chemically similar to its natural counterpart is not adequate evidence that it is safe for human consumption.
Europe has been slow to exploit its considerable scientific research expertise for economic benefit. A culture of venture capitalism must be created if Europe is to compete more effectively with the United States.
The drive to squeeze ever more food from the land has sent Europe's farmland wildlife into a precipitous decline. How can agricultural policy be reformed so that we have fewer grain mountains and more skylarks?
The relationship between the scientific community and the general public has never been worse in living memory. The commercialization of research is largely responsible, but scientists can still act on the problem.
It is time for environmental scientists and policy-makers to speak the same language, and to target the achievable, not simply the desirable. A framework is emerging from the International Geosphere-Biosphere Programme.