Here is an article on the CBC website that discusses your carbon footprint and how to reduce it.
It does mention the horrendous impact of children, but still glosses past it to focus on other contributions that have far far less impact.
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What are the best ways to shrink your carbon footprint?"Emma Rohmann works hard to minimize her family's contribution to climate change. She and her husband Erich, who have two young children, have retrofitted their Toronto home to be more energy efficient. They've also cut way back on eating meat, driving and flying to reduce their carbon emissions.
"Thinking about the future I'm leaving for my kids, I think my carbon footprint is something I worry about a lot," says Rohman, 33, an environmental engineer who runs Green at Home, a consulting firm that helps families and businesses make greener choices."
(snip)
"It can be hard to compare so many studies, so earlier this year, researchers at the University of British Columbia compiled data from dozens of studies to calculate the emissions from individual behaviours.
They found the four things that would have the biggest impact were:
Having one fewer child (which could reduce emissions by 58.7 tonnes of carbon per year, due to the absence of emissions that an extra person would generate over a lifetime).
Living car-free (reducing emissions by 2.4 tonnes per year).
Avoiding air travel (reducing emissions by 1.6 tonnes per transatlantic flight).
Eating a plant-based diet (reducing emissions by 0.8 tonnes per year compared to a diet that includes meat).
Lead author Seth Wynes compared those to actions recommended by sources such as governments and high school textbooks and was surprised by how different they were.
"They tended to focus on incremental behaviours instead, with smaller step-by-step benefits," Wynes said, like conserving energy through hanging clothes to dry or improving home heating and cooling efficiency."
(more at link)
http://www.cbc.ca/news/technology/carbon-footprint-choices-1.4403708