The White House said that Israel's deadly airstrike on a tent camp in Rafah did not cross a "red line," calling into question the seriousness of Biden's threat to cut off military aid.
US energy consolidation continues with the announcement that ConocoPhillips will buy Marathon Oil for $22.5 billion.
In the world of greenhouse gas emissions, carbon dioxide gets most of the blame. Now some researchers think they’ve found a bacteria that can help. Writing in this week's Nature, they say extensive lab and field trials showed the naturally derived bacteria reduced the nitrous oxide without disrupting other microbes in the soil.