This story was originally published by ProPublica .

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Billionaire Elon Musk is taking issue with a recent investigation by the Houston Chronicle and The Texas Newsroom that raised questions about a flood tunnel project he’s pitching to address Houston’s chronic flooding woes. But experts said his response, which he did not explain to the newsrooms, isn’t supported by facts or data.

Last month, the newsrooms reported that Musk’s tunneling company, The Boring Co., has been lobbying elected officials for months to allow it to build tunnels under Houston for flood mitigation. Boring has proposed digging two 12-foot-wide tunnels beneath Buf

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