Yields tend to show inverse-U response to temp. Different countries lie on different parts of curve.
As expected, for most crops it's lower-lat, warmer countries that see negative response to temp rise.
Maps show response to 1°C rise (red = yield decline; blue = increase).
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Some higher-latitude countries see yield increases across many crops.
Most crops show a yield decline globally. But there are a few exceptions: soybeans, sorghum, potatoes show yield increase nearly everywhere.
Useful to know for crop selection.
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Overall, rising temperatures will impact yields in poorer, more food-insecure countries the most.
But there are agricultural practices & inputs which can counter some of these impacts: irrigation in particular; also fertilizers & pesticides can offset some of these declines.
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Terrible of the @guardian to publish this ill-informed, out-dated article on EVs.
Why does it build so much of its coverage around the climate crisis, then continually publish nonsense articles that undermine real solutions to address it?
Over its life course, the emissions of EVs are lower (how much lower depends on the electricity mix). As the world decarbonises, this will get even better.
What impact have national greenhouse gas emissions had on global warming?
A new paper by @Jones_MattW & team at @gcarbonproject quantifies each country's contribution to global mean surface temperature rise.
I've added this data to @OurWorldInData. Here are some highlights 👇
@Jones_MattW@gcarbonproject@OurWorldInData First, the team calculcates contributions to temperature rise using cumulative emissions of CO2, methane & nitrous oxide since 1850.
They convert this into carbon-dioxide equivalents using the GWP* method.
Includes emissions from fossil sources, agriculture & land use
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