UPS is targeting cross-border e-commerce sellers with a deferred-delivery shipping product that would cost less than tighter delivery windows, a sign of integrators wanting to tap into forecast growth in international online sales.

There are savings to be made from slowing ships even further, although with vessels already slowing down there will be diminishing returns.

Tough new truck emissions reduction rules by European regulators have brought mixed reactions from freight transportation providers.

Shippers are taking a cautious approach to air cargo as the UK struggles with Brexit and the US considers imposing tariffs on a wider range of European goods.