In case you missed it: It was reported yesterday that U.S. President Donald Trump is considering withdrawing the U.S. from the Paris climate accord deal. It is expected that he will announce his final decision about the pact–the first legally binding global agreement to fight climate change–sometime today. Happening around the Hill: Mélanie Joly, minister of Canadian Heritage, will announce details of Ottawa's Canada Day celebrations today in an event on the front steps of Parliament Hill. At noon, there will be a "pop-up performance" on near the stairs in front of Centre Block. Afterwards, media are invited to the Sir John A. Macdonald building, where Ms. Joly will announce the details of the three-day celebration which will take place around the National Capital Region, including Parliament Hill, the Canadian Museum of History and in Major’s Hill Park. The Federation of Canadian Municipalities’ Big City Mayors’ Caucus, which includes representatives from Canada's 22 largest cities, will take place today in Ottawa. According to a press release, today's conference will focus on the federal government’s long-term infrastructure plan and will host Amarjeet Sohi, minister of Infrastructure and Communities, and Catherine McKenna, minister of Environment and Climate Change. The group will discuss transit, housing, and green infrastructure. The event will take place at the Shaw Conference Centre. The office of the Parliamentary Budget Officer, Jean-Denis Fréchette, will be releasing a new report today, entitled “The Cost of Canada’s Surface Combatants” which is meant to provide an independent cost estimate of the Department of National Defence’s Canadian Surface Combatant program. The report will be released on the PBO's website at 9:00 a.m. The PBO will be available to answer questions about this report for parliamentarians and their staff at 50 O’Connor Street, 6th Floor, room 612, from 2:00 to 2:45 p.m. The 6th Annual Bike Day on the Hill is taking place today. The event is meant to celebrate cycling as a valuable and fun source of physical activity, as well as to promote bike safety. According to a government press release, "parliamentarians, municipal officials, cycling advocates, and the public" will be taking part in a leisurely bike ride, beginning at Parliament Hill at 5 p.m. It's been confirmed that Senator Nancy Greene, Senator Chantal Peticlerc, and some of the Big City Mayors will be participating, along with a number of MPs. Bank of Canada Governor Stephen S. Poloz and parliamentary secretary to the minister of Finance, Ginette Petitpas Taylor, will participate in a photo opportunity at the Bank of Canada on 30 Bank Street to celebrate the entry into circulation of the Canada 150 commemorative bank note. The event will take place at 9 a.m., and there will be a series of similar events taking place across the country throughout the day. It's the second day of CANSEC, the annual international defence and security trade show in Ottawa. Parliamentary Secretary for the minister of Public Services and Procurement, Steven MacKinnon will be speaking at the event, which is taking place at the EY Centre. At 3:40, Bardish Chagger, leader of the government in the House of Commons and minister of Small Business and Tourism, and Indigenous and Northern Affairs Minister Carolyn Bennett, will be taking part in a Tourism Week event with Aboriginal Experiences on Victoria Island. Nationwide news-makers: Jean-Yves Duclos, minister of Families, Children and Social Development and the minister responsible for Canada Mortgage and Housing Corporation (CMHC), will be in Antigonish, N.S. to make an announcement about investments into affordable rental housing. The event will take place at 4 p.m. at the People's Place Library and Sean Fraser, MP for Central Nova, will also be taking part. Governor General David Johnston and his wife Sharon Johnston are attending events today in Vancouver and Surrey, B.C. as part of their tour of Western Canada, which will also take them to Burnaby, Whistler, Edmonton, and Calgary. *Editor's note: A previous version of this article reported that Public Services and Procurement Minister Judy Foote would be speaking at the CANSEC trade show today. Ms. Foote is currently on leave, and her parliamentary secretary is replacing her at the event.