•Bolsonaro leads Lula in runoff as climate policy implications draw scrutiny from environmental groups.
•Brazil scrapped the 0.89 reais per litre federal petrol tax for 30 days, effective as prior relief expired, two weeks before the Lula–Flávio Bolsonaro runoff.
Rachel Meyers I started measuring one customer behavior change per week instead of chasing a perfect launch and finally saw what actually moved the needle.
