|BUYING GREAT LAKES
Crompton's $1.8 billion purchase of Great Lakes Chemical will create third-largest publicly held U.S. specialty chemical firm.
NO CLEAR SKIES
Deadlocked Senate committee effectively kills President Bush's air pollution legislation.
Cross-linking of zinc phosphate lubricant additives protects engines, model finds.
FDA seizes supplies of two GlaxoSmithKline drugs amid concerns about quality.
Nobel Laureate and pioneering physicist Hans Bethe, 98, has died.
Portable Raman method detects biological agent quickly and with improved sensitivity.
President nominates agency veteran Stephen Johnson to head EPA.