The world's largest e-commerce companies, such as Amazon and IKEA, have agreed to achieve 'zero carbon emissions' in the process of sea transportation by 2040, the Washington Post (WP) and CNBC broadcasters reported on the 19th (local time).

Companies such as Amazon, IKEA, Unilever, and Michelin announced that they plan to switch to using only ships that use fuel with zero carbon emissions by 2040 to reduce greenhouse gas emissions generated in the course of international trade.

According to the WP, cargo ships that currently transport 90% of the world's products emit 1.1 billion tons of carbon dioxide annually, which is about 3% of the total carbon dioxide emitted by humans, equivalent to Germany, the sixth-largest carbon emitter.

In 2018, the International Maritime Organization (IMO) set a goal to reduce carbon emissions from international shipping by at least 50% compared to 2008 levels by 2050.

In this regard, the American environmental group 'Clean Air Task Force' (CATF) said that in order to achieve the IMO's goal, many international shipping vessels must use carbon-free fuels such as ammonia, which are three to seven times more expensive than conventional ship fuels.

In particular, CATF predicted that the US shipping industry would need to use 47 million tons of ammonia to reach the IMO's 2050 target.

It also estimated that switching fuel to liquefied natural gas (LNG) as a transitional stage would reduce carbon emissions by 15%, assuming that methane emissions could be significantly reduced compared to today.

The global shipping industry has also paid attention to ammonia as an eco-friendly fuel to replace existing fuels.

However, some point out that it will take a long time before ammonia can be used as a marine fuel in reality.

CATF said, "To respond to the climate crisis, the shipping industry must quickly become 'zero-emission'.

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