For Canada, meeting its current climate targets will be complicated and expensive

Our planet is changing. So is our journalism. This story is part of a CBC News initiative entitled Our Changing Planetto show and explain the effects of climate change and what is being done about it.

Canada's track recordhas beenpretty simple when it comes to climate targets.

Step 1: Set an ambitious goal

Step 2: Largely maintain the status quo

Step 3: Miss goal

Step 4: Set new goal

The historical pattern holds true with past agreements struck in Rio, Kyoto and Copenhagen. To meet the Paris target and the federal government's revised target unveiled this summer, considerable change is necessary.

• Have questions aboutCOP26or climate science, policy or politics? Email us:ask@cbc.ca. Your input helps inform our coverage.

Canada is sending a delegation to the United Nations climate change conference, COP26,in Glasgow, which begins on Sunday,as world leaderstry to set new emissions reduction goals to address climate change.

The Conference of Parties (COP), as it's known, meets every year and is the global decision-making body set up in the early 1990s to implement theUnited Nations Framework Convention on Climate Changeand subsequent climate agreements.

What's clear is that meeting current climate goals in Canada won't be simple, won't be cheapand will require more than just one or two industries to chip in.

The next decade

The federal government released its plan for how emissions could be cutin the next decade to meet the original 2030 goal of a 30 per cent reductioncompared with 2005 levels. Citing a combination of current policies such asthe escalating carbon tax, the coal phaseout and the Clean Fuel Standard with industry trends such as energy-efficiency improvements, the country would be able to lower its emissions by about 200 million tonnes.

Home energy retrofits, increasing adoption of electric carsand strengthened methane reductions are also necessary.

Still, considering Canada's past performance, there are many skeptics about how achievable this road map will actually be.

In addition, Ottawa upped its goal this past summer, now hoping to drop carbon emissions by between 40 and 45per cent below 2005 levels by 2030. That means an additional 50 million to 90 million tonnes of CO2 reductions on top of the original 200 million tonnes.

Oilpatch is No.1

Canada's oil and gas sector and the oilsands in particular will face significant challenges if the country is to reach its greenhouse gas (GHG) targets.

The oil and gas sector isthe largest source of GHG emissions, accounting for 26 per centof total national emissions in 2019, according to Natural Resources Canada.The transportsector is second, contributing25 per cent of Canada's emissions.

Although the oilsands have seen reductionsin the emissions producedper barrel, the total emissions from the oilsandscontinueto faceupward pressureas they pumpout more oil.

Canadian oilsands producers pledged this year to achieve net-zero emissions by 2050.

The commitment goes hand in handwith the sector's contention that oil and gas will be needed for decades to come, even as others urge a rapid transition away from fossil fuels.

"Canada has an opportunity to lead on climate change by delivering meaningful emissions reductions, as well as balancing sustainable economic development," Tim McKay, president of energy producer Canadian Natural Resources, said at the time of the pledge in June.

Industry plans lean hard on the promise of carbon capture, utilization and storage (CCUS) technologies, where carbon dioxide can be captured andstored below groundor used in other processes. Those plansalsoinclude a big ask from government.

Proponents also see CCUS technology as key to growing other sectors that rely on fossil fuels as a feedstock, such asplastics or low-carbon hydrogen production.

"Over the next decade, the biggest opportunity for Canada is working with the oilsands, working with plans like they are developing on carbon capture," John Stackhouse, a senior vice-president with RBC, one of the world's top bankers to the fossil fuel industry, said in an interview.

Chris Severson-Baker, Alberta regional director of the Pembina Institute, a green energy think-tank, cautions against over-hyping what the technology can realistically achieve in the oil and gas sector.

"It's a necessary practice on the path to net zero, but it's not a panacea you can't just apply carbon capture on every source of emission," he said.

CCUS is technologically viable, but expensive and complex, Severson-Baker said. For example, a company is unlikely to use it on an aging facility that may have only 20 years of life remaining.

Severson-Baker suggested politicians should be wary of putting off hard emissions challenges today by relying on CCUS to deliver deep reductions down the road.

"It's OK to pin our hopes on CCUS as long as we back it up with real plans and commitments, binding targets, all that kind of stuff, and we scale up our level of ambition and investment in other things like renewables and energy efficiency," he said.

The Pembina Institute says Alberta needs a net-zero commitment and a pathway to get there.

It says the province's climate plan should include 2030 provincial and sectoral targets consistent with climate commitments adopted in Paris in 2015, as well astime-bound, measurable steps to decarbonize the sector.

Big bucks

A long list of investments is needed to drive down emissions in the country beyond CCUS, such as more renewable energy and batteries in the electricity sector, making residential and industrial buildings more efficient, and producing more affordable and practical electric vehicles.

Overall, it could cost $2 trillion to transition the country so itreaches net-zero emissions by 2050, according to a recent report by RBCcalled The $2 Trillion Transition: Canada's Road to Net Zero.It's a combination of spending by governments and the private sector.

It works out to about $60 billion to $80 billion per year spread out over several areas.

The price tag is divided up at $25 billion for electric vehicle infrastructure;$13.7 billion on emissions reductions in the oilpatch;$5.4 billion in the electricity sector; $5.4 billion upgrading old buildings;$4.4 billion in heavy industries; and $2.5 billion in the agricultural sector per year.

"It's a really big challenge if we don't have a clear strategy and sector-based plans to get there," RBC's Stackhousesaid.

"Two trillion is a big number," he said. "Most of this is private money. This is getting private savings from you and me, or from companies that are sitting on fairly strong balance sheets, to get that private capital invested."