Warren Buffett’s company appears to be betting on the housing market picking up because Berkshire Hathaway bought more than $700 million worth of homebuilder DR Horton’s stock this spring along with smaller stakes in fellow builders Lennar Corp. and NVR Corp. Berkshire revealed those new investments Monday in a quarterly filing with the Securities and Exchange Commission that shows the conglomerate’s holdings as of the end of June.

WHO said it did not recommend routine monitoring of microplastics in drinking water and said that concerns over microplastics should not distract water suppliers and regulators from removing microbial pathogens, such as those causing deadly diarrheal diseases. Based on the limited evidence available, chemicals and microbial pathogens were a low concern for human health, the report said. "It is important to put concerns about exposure to microplastics from drinking water into context: We are widely exposed to microplastics in our daily lives via a wide number of sources, of which drinking water is just one. Plastic bottles and caps that are used may also be sources of microplastics in drinking water, the report added. In 2016, 485,000 diarrhea- related deaths were attributed to microbially contaminated drinking water.