Scientists in New Zealand have developed a low cost technology that can clean contaminated soil

AS THE global warming debate heats up, scientists are looking towards the most unlikely source for clues -- penguins. They suspect the availability of fish on which penguins feed is increasing in the

THIRTY years of deforestation in the temperate regions has caused more pollution than 140 years' use of forests in the tropics. When' temperate forests were cut down in the 19th century by the