“With the lack of a positive trend in monthly springtime precipitation, there is no direct observational evidence that the record-setting May 2015 statewide rainfall total in Texas had an anthropogenic component.”
The mainstream news media have become more cautious in their coverage of extreme weather, unlike their previous uncritical reporting of everything as climate change. For example, see this by USA Today: “Wild weather shifts in Texas spark concern about “new normal’.” And “Climate Change May Have Souped Up Record-Breaking Texas Deluge” by Elizabeth Harball and Scott Detrow at Scientific American on 27 May 2015 — “Deadly downpours flooded Texas and Oklahoma and may have been exacerbated by global warming.” The link to climate change is strongly implied, but not stated as definite. The text reports climate scientists’ uncertainty about attribution of events to climate change.
Activists ignore the science, preferring simple narratives. Bill Nye, the children’s science guy, says on CNN: “The floods in Texas, the strengthening storms… these things are a result of human activity making things worse.” As usual, the most over-the-top story comes from fantasy writer – climate activist Robert Marston Fanney (bio here) at his blog RobertScribbler: “The Merciless Rains of Climate Change Hammer Houston, Southeast Texas.”
Eventually scientists will produce papers with more definitive information. Here’s an excerpt from an early analysis (click on the link to read it in full)…