Not a concession. Just pointing out your silliness.
I knew it was located in the consensus work in the blog. What you don't know, and is unethical from that NASA blog, is that statement is obsolete and superseded.
The original appeared in 2009 and in the AAAS website, but was replaced by "Based on well-established evidence, about 97% of climate scientists have concluded that human-caused climate change is happening" in 2014. Your NASA bloggers are using obsolete material on your reference #2. I'm sure there was a huge membership uproar when they published that without a membership vote. In 2016, AAAS updated their material again. They use the same sentence, but here is the complete paragraph:
1. Climate scientists agree: Climate change is happening here and now.
Based on well-established evidence, about 97% of climate scientists have concluded that human-caused climate change is happening. This agreement is documented not just by a single study, but by a converging stream of evidence over the past two decades from surveys of scientists, content analyses of peer-reviewed studies, and public statements issued by virtually every membership organization of experts in this field. Average global temperature has increased by about 1.4˚ F over the past 100 years. Sea level is rising, and some types of extreme events—such as heat waves and heavy precipitation events– are happening more frequently. Recent scientific findings indicate that climate change is likely responsible for the increase in the intensity of many of these events in recent years.
Notice, they removed the claim that greenhouse gasses are the primary driver. I'm pretty sure they have scrubbed such language from their current statement releases. Why would they do that, if they didn't realize such a claim to be scientific malpractice?
It appears back in 2009, that the APS was one of the few large science organization that refused to repeat the propaganda. Hat's of to them.