News bites: US carbon emissions lowest since 1994, renewable capacity doubles

Rep. Stephen Lynch (D-Mass.) formally announced his candidacy to replace soon-to-be Secretary of State Sen. John KerryJohn Forbes KerrySchumer to donate Epstein campaign contributions to groups fighting sexual violence Trump threatens Iran with increased sanctions after country exceeds uranium enrichment cap The 'invisible primary' has begun MORE (D-Mass.), Reuters reports. Lynch will face Rep. Edward MarkeyEdward (Ed) John MarkeyHead of miners union calls Green New Deal's main goal 'almost impossible' Dem senators demand GOP judicial group discloses donors Warren reintroduces bill mandating climate disclosures by companies MORE (D-Mass.), a favorite of green groups, in the Democratic primary.

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An explosion at the Mexico City headquarters of Mexico’s state-owned oil company killed at least 25 people and injured 100 others, The Associated Press reports. Mexican officials said they were unsure of what sparked the blast.

The European Union is considering banning insecticides linked to a fall in the bee population, according to The Guardian.