A new study shows that systems designed to capture methane from cow manure, called dairy digesters, are highly effective. But on the rare occasions they fail, the leaks are large enough to offset ...

Data released by scientists show that manure digestors, which extract methane from farm waste to be converted into energy, mostly work well. But researchers say they're susceptible to rupture, and ...

The technology used to convert methane from farm waste into usable energy is effective but has risks, according to new research. Scientists say manure digesters are susceptible to rupture, and when ...

A new study concluding Central Valley dairy digesters perform unevenly at times has renewed a debate over whether the installations deserve the large state subsidies they require. A University of ...