Energy
Infographic: Emissions Change Starts at the Top
Emissions Change Starts at Top
Some of the largest companies in America are also those leading the charge toward a more sustainable future, according to a joint report by Calvert Research, WWF, CDP, and Ceres.
Today’s infographic comes from Fortune’s Nicolas Rapp, who used this data to visualize the CO2 emissions saved by 56 of the Fortune top 100 firms. In the graphic, each company’s CO2 savings are represented by an equivalent mass of coal not burned.
Big Companies, Big Goals
Nearly half (49%) of Fortune 500 companies in 2016 set targets to increase renewable energy sourcing, improve energy efficiency, or reduce greenhouse gas emissions (GHGs).
Over the course of the year, 190 of these companies managed to report a total $3.7 billion in cost savings thanks to some 80,000 emissions-reducing projects. That’s roughly equal to the impact of taking 45 coal-fired power plants offline.
Computing Giants Using Power Responsibly
Apple has done more than any other company on the Fortune list to reduce their environmental impact, saving the equivalent emissions of 35 billion pounds of burned coal. This alone would be enough to meet the year-round power consumption needs of 9.7 million homes – more than in the entirety of New York state.
What types of initiatives are they implementing to make these kinds of efforts?
According to their 2017 Sustainability Report, 96% of Apple’s electricity comes from renewable sources, including hydroelectric and solar. The company also recently issued $1 billion in “green bonds”, the proceeds of which are to be used in eco-friendly projects. This is in addition to an existing issue of $1.5 billion of green bonds from 2016.
On the other hand, Microsoft is focused on energy efficiency, with the bulk of its work going towards improving the efficiency of data centers and buildings. As of 2016, roughly 44% of the electricity used by Microsoft data centers originates from wind, solar, and hydro energy sources.
Solar Power Shines for Big Box Retailers
Walmart, the largest brick and mortar retailer in the U.S., is also one of the biggest corporate users of solar power in the country. In 2005, Walmart’s former CEO, Lee Scott, set goals for the company’s store network to be powered entirely with renewable energy.
Though they have not met this goal yet, Walmart’s adoption of solar has reduced its energy costs per square foot of retail floor space by 9% chainwide. Other companies with large installations of onsite solar panels include Prologis, Apple, Costco, Kohl’s, and IKEA.
Are Clear Skies Ahead?
With the impending review of the Clean Power Plan’s role in American energy policy, the onus on large and powerful corporations to minimize their environmental impact is now greater than ever. Though we can already see the massive scale on which these firms have been able to improve their carbon footprints, even the equivalent of 35 billion pounds of burned coal is just the tip of the iceberg.
Energy
5 Ways Nuclear Power Can Enable an Energy Utopia
From clean electricity to high reliability, this graphic explores the five key advantages of nuclear power in the clean energy transition.


5 Ways Nuclear Power Can Enable an Energy Utopia
The phrase Energy utopia describes a hypothetical and sustainable state of the world where energy is clean, affordable, and accessible.
Despite the challenges on the road to achieving an energy utopia, such a state is attainable if the world invests in clean, reliable technologies that can meet our rising energy needs—and nuclear power is one such technology.
This infographic sponsored by CanAlaska Uranium explores five ways nuclear power can unlock a state of energy utopia. This is Part 2 of 4 in the Road to Energy Utopia series.
#1: High Reliability
Nuclear power plants run 24/7 and are the most reliable source of sustainable energy.
Nuclear electricity generation remains steady around the clock throughout the day, week, and year. Meanwhile, daily solar generation peaks in the afternoon when electricity demand is usually lower, and wind generation depends on wind speeds.
As the use of variable solar and wind power increases globally, nuclear offers a stable and reliable backbone for a clean electricity grid.
#2: Clean Electricity
Nuclear reactors use fission to generate electricity without any greenhouse gas (GHG) emissions.
Consequently, nuclear power is the cleanest energy source on a lifecycle basis, measured in CO2-equivalent emissions per gigawatt-hour (GWh) of electricity produced by a power plant over its lifetime.
The lifecycle emissions from a typical nuclear power plant are 273 times lower than coal and 163 times lower than natural gas. Furthermore, nuclear is relatively less resource-intensive, allowing for lower supply chain emissions than wind and solar plants.
#3: Stable Affordability
Although nuclear plants can be expensive to build, they are cost-competitive in the long run.
Most nuclear plants have an initial lifetime of around 40 years, after which they can continue operating with approved lifetime extensions. Nuclear plants with lifetime extensions are the cheapest sources of electricity in the United States, and 88 of the country’s 92 reactors have received approvals for 20-year extensions.
Additionally, according to the World Nuclear Association, nuclear plants are relatively less susceptible to fuel price volatility than natural gas plants, allowing for stable costs of electricity generation.
#4: Energy Efficiency
Nuclear’s high energy return on investment (EROI) exemplifies its exceptional efficiency.
EROI measures how many units of energy are returned for every unit invested in building and running a power plant, over its lifetime. According to a 2018 study by Weissbach et al., nuclear’s EROI is 75 units, making it the most efficient energy source by some distance, with hydropower ranking second at 35 units.
#5: Sustainable Innovation
New, advanced reactor designs are bypassing many of the difficulties faced by traditional nuclear plants, making nuclear power more accessible.
- Small Modular Reactors (SMRs) are much smaller than conventional reactors and are modular—meaning that their components can be transported and assembled in different locations.
- Microreactors are smaller than SMRs and are designed to provide electricity in remote and small market areas. They can also serve as backup power sources during emergencies.
These reactor designs offer several advantages, including lower initial capital costs, portability, and increased scalability.
A Nuclear-Powered Future
Nuclear power is making a remarkable comeback as countries work to achieve climate goals and ultimately, a state of energy utopia.
Besides the 423 reactors in operation worldwide, another 56 reactors are under construction, and at least 69 more are planned for construction. Some nations, like Japan, have also reversed their attitudes toward nuclear power, embracing it as a clean and reliable energy source for the future.
CanAlaska is a leading exploration company in the Athabasca Basin, the Earth’s richest uranium depository. Click here to learn more now.
In part 3 of the Road to Energy Utopia series, we explore the unique properties of uranium, the fuel that powers nuclear reactors.

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