Climate change
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Steel’s methane footprint
How much methane is emitted into the atmosphere each year due to steel making? The answer, surprisingly, seems to be that no one really knows. […]
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Steel’s Greenhouse Gas Footprint(s)
So the steel sector emits around 3.7 gigatonnes (Gt) of carbon dioxide (CO2) a year (see ‘6%, 7%, 8%, 9%, 10%, 11%…’), and perhaps another 18.3 […]
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Methane: steel’s dirty secret?
A few months back I tried to get to the bottom of the wide range of statements about the steel sector’s CO2 emissions. The answer was […]
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Global Recycling Day: the long view
When it comes to recycling, it is worth taking the long view. For the first few thousand years iron and steel recycling meant reworking rather […]
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All you need to know about steel, scrap and greenhouse gas emissions in just 2 graphs: graph#2
Last week’s graph (see graph#1) started to explore the relationship between crude steel production, scrap generation and the residual demand for iron extracted directly from […]
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All you need to know about steel, scrap and greenhouse gas emissions in just 2 graphs: graph#1
Just two graphs tell you everything you need to know about steel, scrap and greenhouse gas emissions. This is the first. Along the bottom, left […]
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A Montreal Protocol for Steel
The steel sector emits more than 4 billion tonnes CO2 equivalent of greenhouse gases every year, 90% of which is from coal-based steelmaking. That has […]
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6%, 7%, 8%, 9%, 10%, 11%…
The World Steel Association, worldsteel, estimates that the steel sector emits 7% – 9% of global CO2 emissions But other numbers are available: take your […]
