commit 14f2cc8dbea71ece63fa526210431ecd49500ca8
parent 05487dc5a19943cab7ec16d570ba59ea32c7b17d
Author: Antoine Amarilli <a3nm@a3nm.net>
Date: Tue, 2 Sep 2025 16:56:14 +0200
changes
Diffstat:
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/2025/README.md b/2025/README.md
@@ -109,8 +109,10 @@ without updating them to ensure that the methodology is comparable.
The number of onsite participants is a little higher, and the number of
nonlocal onsite participants is a little lower. The footprints per nonlocal
participant are significantly lower: a 22%-27% decrease (depending on whether
-locals are included or not). Given that the profile of "long trips" is similar
-to 2024, we ascribe this change to the location being more central.
+locals are included or not). Including locals, we get to 202 kgCO2/participant
+this year, compared to 260 kgCO2/participant last year. Given that the profile
+of "long trips" is similar to 2024, we ascribe this change to the location being
+more central.
Indeed, if the same participants had come to Bordeaux (the 2024 venue),
from/to the same places and the same transportation means, then the average
@@ -123,3 +125,6 @@ changed who attends and how they travel -- but maybe this would not be a large
change. So our best hypothesis is that essentially the same people came, by
the same means, but the total travel to Saarbrücken was smaller.
+Another piece for evidence for this is that the footprint per participant in
+2023 (in Germany) was 225 kgCO2/participant, so similar to 2025.
+
