Complex sentence: Donziger graduated from American University and has a law degree from Harvard University & before taking on Chevron Corporation 18 years ago in the Lago Agrio oil field case, he had never brought a civil lawsuit.
Split into simpler sentences: Donziger graduated from American University and has a law degree from Harvard University. Before taking on Chevron Corporation 18 years ago in the Lago Agrio oil field case, he had never brought a civil lawsuit.