London (CNN Business) Online shopping makes life easier for consumers but it can harm the environment, especially if you opt for express delivery. German automaker Daimler has found one way to tackle the climate crisis.

Moving packages from a factory to a warehouse and then your home often requires the use of gas-guzzling vehicles — and they contribute significantly to CO2 emissions.

Agora, a think tank, says that 38% of European road emissions come from heavy duty vehicles. Emissions from trucks and buses have risen at a rate of 2.2% annually since 2000, according to the International Energy Agency.

Daimler DDAIF , which owns Mercedes-Benz, says its electric eActros trucks can help on-demand delivery remain timely without polluting the air.

Gesa Reimelt, head of e-mobility at the automotive group, told CNN Business that the new eActros took about five years to develop and could be on the road by 2021.

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