Climate scientists care about accuracy. In the storm of misinformation which circulated during and after Hurricane Sandy, their conclusions have been oversimplified and swept away.
The Associated Press published an article which covers the nuances of the situation very well. The website of the NOAA Geophysical Fluid Dynamics Laboratory also has some useful background information on hurricanes. Here’s a very simple summary:
- One scientist, Gerald North, estimated 80 to 90 percent of this hurricane was due to natural causes.
- Climate change is gradually making flooding worse. This can amplify the effects of any hurricane.
- The NOAA is still gathering data, but suggests warming seas may both intensify hurricanes and lower their frequency.
From my experience reading and writing climate-related stories, I can add:
- One reason the devastation in Haiti has been so serious is that Haiti residents lacked safe housing and infrastructure.
- If we invest in improving our infrastructure and housing here, that can reduce the damage of the floods from future hurricanes.
However, the hurricane seems to have blown common sense out of the window. Of course, when there’s a natural disaster, one can expect people to respond irrationally. The meme which has emerged is very simple and doesn’t require bullet points.
Global warming caused Hurricane Sandy.
As a communicator who works with nonprofits, I’ve been disappointed by many organizations’ responses to the hurricane. My Facebook feed has been full of attractive images implying global warming caused the hurricane. Here’s an example from tcktcktck:

An example of inaccurate nonprofit messaging after Hurricane Sandy.
What’s wrong with this picture? First, it confuses the issue. Increased flooding does not equal increased storms. Second, Cuomo is not a climate scientist and this quote is not based on research.
Not all of the nonprofits on my list used this meme, though. Union of Concerned Scientists published a thoughtful Q&A which presented the situation in a very different light.
If nonprofits want to be recognized as credible sources by the press, they should make sure they don’t let this meme sweep their messaging away.
Does climate change cause flooding? Definitely. Did it cause this hurricane? Not likely. Does it make hurricanes worse? Possibly.
Can we strengthen our infrastructure and adapt to reduce the damage future hurricanes cause? Yes. Regardless of the cause of this storm, we should do that as soon as possible.
Should we take action to limit the effects of climate change? Of course. And environmental nonprofits can help to lead the way.