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A group representing the vast majority of the world’s ship owners said world trade is at risk if issues surrounding new fuel rules aren’t resolved quickly, providing the starkest warning yet as to the potential impact of regulations that are due to enter into force in less than two years’ time.

Brent crude will reach $90 a barrel by 2020 as new international shipping regulations take effect, overhauling the types of fuels produced by refiners, Morgan Stanley analysts said in a report.

This spring, the U.S. Environmental Protection Agency awarded nearly $6.4 million to the San Joaquin Valley Air Pollution Control District to replace older diesel trucks for those that run nearly 90% cleaner, and older farm tractors for those that meet the latest emissions standards.

The Trump administration is preparing to battle California’s tough car pollution regulations using an approach that federal courts already have rejected. Twice.

California isn’t rolling over as the Trump administration moves to toss Obama-era vehicle emission standards.

Robert Bosch GmbH said its engineers have developed a new diesel-exhaust system that cuts emissions far below legal limits taking effect in 2020 and can help automakers avoid potential driving bans in Europe that threaten to doom the engine technology.

Over and over in their decadeslong war on smog, Southern California regulators have failed to use a powerful tool against ports, warehouses and other freight and logistics hubs that are magnets for air pollution.

The Trump administration announced that fuel-efficiency regulations for cars and light trucks are too stringent and must be revised, formally beginning a process sought by the U.S. auto industry to rollback anti-pollution targets.

The Trump administration will argue that the high cost of meeting Obama-era fuel economy standards discourages motorists from trading in less-efficient vehicles, as it sets about weakening the rules, said people familiar with the discussions.

As the Trump administration begins to dismantle Barack Obama’s ambitious auto efficiency regulations, California is said to be poised to retaliate by doing something that automakers have feared: de-coupling the state’s rules with those set in Washington.