Global Average Temperature 2025

[GaWx]

1 hour ago, donsutherland1 said:

Here are two big problems with his arguments:

He writes:

Regarding all the articles from so called authorities that climate change is already cutting back on food production:

100% nonsense. It's the exact opposite. With crops, we can't tell how much impact is from CO2, climate/weather, genetics, fertilizers, use of pesticides/herbicides(technology).

 When you change numerous variables at the same time, like we do with crops, it's impossible to separate the impact from each one on the outcome.  

Flaw: He claims that "it's impossible to separate the impact" from CO2, climate/weather, genetics, etc. Yet, he also claims that the idea that climate change is "100% nonsense." That's inherently inconsistent logic.

He also states:

...we have 2 ways to address that with OBJECTIVE data which clearly speaks for the impact of photosynthesis by itself and for photosynthesis +climate change.

1. The impact of JUST adding CO2 and not changing anything else...

2. But other human factors impact soybeans, including climate change that we can't separate out.  

Flaw: He oversimplifies things by ignoring the variable of temperature. Omitting temperature provides him the solution he seeks. However, cherry picking in pursuit of confirming one's biases is not a valid scientific approach. 

Recent research provides a clear link between temperature and crop yields. For example, a May 31, 2024 paper in Nature Communications found:

All specifications and weather data uncover an asymmetric relationship for the US where yields are increasing in temperature for moderate temperature ranges, but sharply decrease in temperature at the upper end.

Thanks, Don

1. I felt that at a minimum that the wording wasn’t the best, possibly due to haste. I may follow up with him on that to get better clarification.

2. He did mention the effect on crop sizes from the variable of climate/wx being hard to separate out. Doesn’t that include the variable of temperature?

[donsutherland1]

12 minutes ago, GaWx said:

Thanks, Don

1. I felt that at a minimum that the wording wasn’t the best, possibly due to haste. I may follow up with him on that to get better clarification.

2. He did mention the effect on crop sizes from the variable of climate/wx being hard to separate out. Doesn’t that include the variable of temperature?

Crop sizes being "hard to separate out" is his defense for setting aside the latest scientific research demonstrating a clear link with temperature. The statistical basis is sound.