The Ecuadorean judge who stepped down from a $27 billion environmental lawsuit against Chevron Corp. after the company accused him of bias should remain in charge of the case, a court in Ecuador ruled. A request by Judge Juan Nunez to recuse himself from the Chevron lawsuit was “unfounded,” Judge Nicolas Zambrano said in a ruling yesterday…Nunez, a former Ecuadorean Air Force officer and president of the Nueva Loja Superior Court, has been overseeing a lawsuit filed by Amazon Basin residents in Ecuador who claim Chevron is responsible for toxic waste from oil drilling in the jungle from 1964 to 1990 or later. [also refers to Texaco, Petroecuador]