A crude oil tanker and bulk cargo carrier taking on logs were docked at a terminal in Port Angeles, Wash., in 2014. Shippers have been slow to switch to higher-quality fuels or install bunker-fuel scrubbers as the U.N. requires by 2020. Oil companies are watching, with few upgrading refineries to adapt to new regulations.
A crude oil tanker and bulk cargo carrier taking on logs were docked at a terminal in Port Angeles, Wash., in 2014. Shippers have been slow to switch to higher-quality fuels or install bunker-fuel scrubbers as the U.N. requires by 2020. Oil companies are watching, with few upgrading refineries to adapt to new regulations. Elaine Thompson AP file
A crude oil tanker and bulk cargo carrier taking on logs were docked at a terminal in Port Angeles, Wash., in 2014. Shippers have been slow to switch to higher-quality fuels or install bunker-fuel scrubbers as the U.N. requires by 2020. Oil companies are watching, with few upgrading refineries to adapt to new regulations. Elaine Thompson AP file