Newday Impact Investing CEO Doug Heske is back for another in our regular series of conversations about Environmental, Social and Governance (ESG) investing. We discuss companies that are working to improve animal welfare, both on the farm and for pets in our homes. The first question today relates to the European Union's recent proposed rule to reclassify natural gas and nuclear power as "sustainable" bridge technologies to the post-carbon economy and how that might impact ESG investor's decisions.We take a deep look at the stocks of British retailer Sainsbury's (OTC: JSAIY), which has established comprehensive rules for the treatment of animals in its supply chain, pet care and large animal  and pharmaceutical maker Zoetis (NYSE: ZTS), Tractor Supply Company (Nasdaq: TSCO), which operates farm supply stores and Petsense, and, finally, pet product and insecticide manufacturer Central Garden & Pet Company (Nasdaq: CENTA).