OTTAWA—Conservative Leader Erin O’Toole is pitching a loyalty-card style of carbon pricing where consumers would see what they pay on fuel stored into an account that can be used for green purchases later. The so-called “personal low carbon savings account” is a signature policy of the party’s plan to tackle climate change, which was unveiled Thursday. Making consumers pay a carbon price represents a major shift for the party, which has long campaigned on scrapping the program introduced by the Liberals under Prime Minister Justin Trudeau. O’Toole emphasized his plan would indeed rid the country of Trudeau’s program, and characterized his consumer carbon price as being “a smart, market-based transparent approach to reduce emissions” to similar levels by 2030. “This is not a tax,” O’Toole said. Instead of collecting what residents pay through a fuel charge when they gas up and rebating it back to them through cheques after their …