As Americans suffer through immense wildfires, rising coastal flooding and an epic hurricane season, the nation’s corporations want you to believe they are coming to grips with the climate crisis. Among the companies pledging bold emissions cuts are those that generate America’s electricity, which emit more than a quarter of the nation’s global-warming pollution. Yet, that same industry is about to make a strategic error that could render meeting its own goals far more expensive, if not impossible. As they shut down costly and dirty coal-burning power plants, the electrical companies are planning to build 235 gas-fired power stations across the country, according to our analysis of figures compiled from commercial databases by the Sierra Club. The companies claim these are needed to replace the coal plants, and to balance fluctuations in electricity generation from rising levels of wind and solar power. […]