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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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Steel and the infinitely washable T-shirt
It can seem that every steelmaker on the planet brags that steel is ‘infinitely recyclable’ – but is it? Well, yes and no. In one […]
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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 […]
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How Ship Plates Become Millions of Nails
Awesome, terrifying, and exactly what it says on the tin. Watch as recovered ship plates are cut, melted, extruded and stamped to become millions of […]
