This week:

• Johanne Gélinas, Canada’s Commissioner of the Environment and Sustainable Development, speaks about her report on climate change from the Auditor General’s office.
• Gélinas notes that any Canadian resident can submit an environmental petition to force a government response to environmental questions.

The headlines in brief:

• Mayor David Miller is considering the possibility of parking lot surcharges in downtown Toronto and North York’s city centre;
• 24 billion gallons of untreated effluent enter the Great Lakes every year, according a study by the Sierra Legal Defense Fund;
• In the London byelection, Liberal Glen Pearson took London-North-Centre for the Liberals, with Green Party leader Elizabeth May a close second;
• For the second time this month, Environment Minister Rona Ambrose has cancelled an appearance at a parliamentary committee on global warming;
• The Supreme Court heard arguments this week in a case that could determine whether the Bush administration must change course in how it deals with the threat of global warming;
• Water levels in many reservoirs across Australia have fallen by more than two thirds and some cities have almost no water in a drought that could be the most severe in 1,000 years;
• The rate at which humans are pumping carbon dioxide into the atmosphere has more than doubled since the 1990s, according to Australian researchers.

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