1. Nature really does value getting studies correct, and thus is probably even more stringent about retractions. They will retract studies for smaller problems than other journals. So, high bar of entry, and also highly focused on vetting any challenges that would cause a retraction.
2. There are anti-climate change groups that challenge everything. So just some random link to someone challenging this, doesn't immediately make me doubt it. The trust in Nature is high enough that the challenger must be pretty good, not just saying "well this model looks too simplistic too me, thus it is false".
1. Nature really does value getting studies correct, and thus is probably even more stringent about retractions. They will retract studies for smaller problems than other journals. So, high bar of entry, and also highly focused on vetting any challenges that would cause a retraction.
2. There are anti-climate change groups that challenge everything. So just some random link to someone challenging this, doesn't immediately make me doubt it. The trust in Nature is high enough that the challenger must be pretty good, not just saying "well this model looks too simplistic too me, thus it is false".