The summer of 2021 is changing the way Canadians think about climate change, but both main parties are struggling to define their message — and uphold Canada's international commitments. POLITICO’s Zi-Ann Lum explains. Annie Snider covers water issues for POLITICO Pro. Zi-Ann Lum covers Canadian federal politics and energy and environmental policy for POLITICO and POLITICO Pro Canada. Nirmal Mulaikal is a POLITICO audio host-producer. Raghu Manavalan is the host-producer of the Playbook Daily Briefing and a senior editor for POLITICO audio. Irene Noguchi is the executive producer of POLITICO’s audio department.