million tonnes vs million tons

Some examples from the web:

• Substitution is estimated at 14 million tonnes of carbon.
• It is estimated that 40-45 million tonnes contain hazardous substances.
• Around 1 million tonnes of shale was used for roads construction.
• In 2002 the total production was approximately 13,4 million tonnes.
• Three million tonnes is sheer nonsense.
• It also saved 114 million tonnes of CO2.
• In 1983, Oceania's coal output reached 630 million tonnes.
• The Koolan Island mine closed in 1994 after BHP had extracted 68 million tonnes of high-grade haematite ore, averaging 67% iron.
• In 1974 the annual traffic rose to 14 million tonnes.
• In 2017, steel production within the Group amounted to 6.9 million tonnes.
• The overall carbon dioxide emissions avoided in 2009 amounted to about 2 million tonnes.
• 15 million tonnes more fish in European waters
• Each year, 15 million tonnes of dangerous goods are transported across the SBB network.
• Their total production capacity is more than 360 million tonnes a year.
• In 2009, glass recycling in Europe alone saved 13.8 million tonnes of primary raw materials.
• In 1988, the fishery peaked at 85 million tonnes.
• It said that every second you lose the approximately 4 million tonnes.
• Together, they handle more than 600 million tonnes of recyclables every year.
• The amount of recovered fibre used is around 150 million tonnes per annum.
• It produces 6.2 million tonnes of coal per year.

Some examples from the web:

• Beringer Marine laid down a million tons of raw steel this year.
• The EU produces some seventy million tons of hazardous waste every year.
• One million tons are discarded in Europe every year.
• It's a million tons of shipping every week!
• And there are over 100 million tons of cement in these walls.
• The planet Earth produces around sixty-one million tons of tomatoes each year.
• Steel production reached an estimated 100 million tons last year.
• The total quantity collected in 2006 was 2 million tons.
• More than 10 million tons a day.
• The EU's aquaculture sector totals 1.3 million tons of fisheries products per year, representing some 3 billion euros.
• It is calculated that approximately 220 million tons of red mud is stored within the territory of the EU in various forms.
• And it amounts to something on the order of 3.5 to 5 million tons per year.
• I'm a smudge of excrement on a tissue... surging out to sea with a million tons of raw sewage.
• This farming today produces 15 million tons of seaweed, exported all over the world.
• Over 500 million tons of raw materials arrive in Shanghai every year by sea.
• But now we fish over 10 million tons of them per year.
• In total, 25 million tons of sea fish are raised every year, most of the production coming from Norway and Chile.
• Some estimates rank this illegal fishing at 26 million tons of catch, a quarter of the global total.
• Rotterdam now works 350 million tons of cargo annually... leaving Singapore a distant second.
• In 2007 between North America and Europe over 3.1 million tons of freight was carried, which made it one of the three main global transport routes.