50 years ago, the first atmospheric CO2 data taken at the Mauna Loa Observatory, Hawaii measured 315 ppm. Two weeks ago, the observatory made an announcement: we had nearly averaged 400ppm for one consecutive month . The last time that atmospheric CO2 concentrations reached 400ppm was more than 2 million years ago in the Pliocene […]
I’ll start with the good news: Both the Minnesota House and Senate passed our Clean Energy and Jobs legislation last week. The legislation includes a first-ever solar standard and a strengthened renewable energy standard for investor-owned utilities, as well as important efficiency and local power production policies.