Green
Visualizing the Human Impact on the Earth’s Surface
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Visualizing the Human Impact on the Earth’s Surface
View the high resolution version of this map by clicking here.
There is little doubt that human activity has impacted the Earth, but to what extent?
As it turns out, nearly 95% of the Earth’s surface shows some form of human modification, with 85% bearing evidence of multiple forms of human impact.
This map by data scientist Hannah Ker outlines the extent of humanity’s modification on terrestrial land ecosystems.
Measuring the Human Impact
This map relies on the Global Human Modification of Terrestrial Systems data set, which tracks the physical extent of 13 anthropogenic stressors across five categories.
- Human settlement: population density, built‐up areas
- Agriculture: cropland, livestock
- Transportation: major roads, minor roads, two tracks, railroads
- Mining and energy production: mining, oil wells, wind turbines
- Electrical infrastructure: powerlines, nighttime lights
Researchers compiled all these stress factors and scaled their impact from 0 to 1. Then, in order to map the impacts spatially, the surface of land was organized into cells of 1 kilometer in length creating “edges” of varying impact.
These impacts are further organized by biomes—distinct biological communities that have formed in response to a shared physical climate.
Digging into the Data
Only 5% of the world’s lands are unaffected by humans, which amounts to nearly 7 million km² of the Earth’s land, and 44% (59 million km²) is categorized as low modification.
The remainder of land has a moderate to high degree of modification: with 34% categorized as moderate (46 million km²), 13% categorized as high (17 million km²), and 4% categorized as very high modification (5.5 million km²). This latter category is the most visible on the map, with portions of China, India, and Italy serving as focal points.
Below is a look at how Earth’s various biomes fare under this ranking system:
Out of the 14 biomes studied, the least modified biomes are tundra, boreal forests, deserts, temperate coniferous forests, and montane grasslands. Tropical dry broadleaf forests, temperate broadleaf forests, Mediterranean forests, mangroves, and temperate grasslands are the most modified biomes.
Dense human settlements, agricultural land uses, networks of infrastructure, and industrial activities dominate the more highly modified biomes. These lands are commonly subject to five or more human stressors simultaneously, threatening naturally-occurring ecosystem services.
What are Ecosystem Services?
An ecosystem service is any positive benefit that wildlife or ecosystems provide to people, and they can be sorted into four categories:
- Provisioning Services: This is the primary benefit of nature. Humans derive their food, water, and resources from nature.
- Regulating: Plants clean air and filter water, tree roots help to keep soil in place to prevent erosion, bees pollinate flowers, and bacterial colonies help to decompose waste.
- Cultural Services: Humans have long interacted with the “wild” and it in turn has influenced our social, intellectual, and cultural development. However, the built environment of a city or town separates man from nature and ancient patterns of life. Ecosystems have long served as inspiration for music, art, architecture, and recreation.
- Supporting Services: Ecosystems contain the fundamental natural processes that make life possible such as photosynthesis, nutrient cycling, soil creation, and the water cycle. These natural processes bring the Earth to life. Without these supporting services, provisional, regulating, and cultural services wouldn’t exist.
A Delicate Balance
With each encroachment upon habitat, the potential increases for humans to inadvertently upset the careful balance of ecosystem services that have nourished the processes of life on Earth.
As we become more aware of the human impact on the plant, we can make smarter decisions about how our society and economies function—ultimately ensuring that the same ecosystem services are there for future generations.
Green
How Carbon Credits Can Help Close the Climate Funding Gap
To keep a 1.5℃ world within reach, global emissions need to fall by as much as 45% by 2030, and carbon credits could help close the gap.
How Carbon Credits Can Help Close the Climate Funding Gap
Governments around the world have committed to the goals of the Paris Agreement, but their climate pledges are insufficient. To keep a 1.5℃ world within reach, global emissions need to fall by as much as 45% by 2030.
Bold and immediate action is essential, but so are resources that will make it happen.
In this graphic, we have partnered with Carbon Streaming to look at the role that the voluntary carbon market and carbon credits can play in closing that gap.
More Funds are Needed for Climate Finance
According to data from the Climate Policy Initiative, climate finance, which includes funds for both adaptation and mitigation, needs to increase at least five-fold, from $1.3T in 2021/2022, to an average $8.6T annually until 2030, and then to just over $10T in the two decades leading up to 2050.
That adds up to a very large number, but consider that in 2022, $7.0T went to fossil fuel subsidies, which almost covers the annual estimated outlay. And the world has shown that when pressed, governments can come up with the money, if the global pandemic is any indication.
Mobilizing Carbon Finance to the Developing World
But the same cannot be said of the developing world, where debt, inequality, and poverty reduce the ability of governments to act. And this is where carbon credits can play an important role. According to analyses from Ecosystem Marketplace, carbon credits help move capital from developed countries, to where funds are needed in the developing world.
For example, in 2019, 69.2% of the carbon credits by volume in the voluntary carbon market were purchased by buyers in Europe, and nearly a third from North America. Compare that to over 90% of the volume of carbon credits sold in the voluntary carbon market in 2022 came from projects that were located outside of those two regions.
Carbon Credits Can Complement Decarbonization Efforts
Carbon credits can also complement decarbonization efforts in the corporate world, where more and more companies have been signing up to reduce emissions. According to the 2022 monitoring report from the Science Based Targets initiative, 4,230 companies around the world had approved targets and commitments, which represented an 88% increase from the prior year. However, as of year end 2022, combined scope 1 and 2 emissions covered by science-based targets totaled approximately 2 GtCO2e, which represents just a fraction of global emissions.
The fine print is that this is just scope 1 and 2 emissions, and doesn’t include scope 3 emissions, which can account for more than 70% of a company’s total emissions. And as these emissions come under greater and greater scrutiny the closer we get to 2030 and beyond, the voluntary carbon credit market could expand exponentially to help meet the need to compensate for these emissions.
Potential Carbon Credit Market Size in 2030
OK, but how big? In 2022, the voluntary carbon credit market was around $2B, but some analysts predict that it could grow to between $5–250 billion by 2030.
Firm | Low Estimate | High Estimate |
---|---|---|
Bain & Company | $15B | $30B |
Barclays | N/A | $250B |
Citigroup | $5B | $50B |
McKinsey & Company | $5B | $50B |
Morgan Stanley | N/A | $100B |
Shell / Boston Consulting Group | $10B | $40B |
Morgan Stanley and Barclays were the most bullish on the size of the voluntary carbon credit market in 2030, but the latter firm was even more optimistic about 2050, and predicted that the voluntary carbon credit market could grow to a colossal $1.5 trillion.
Carbon Streaming is Focused on Carbon Credit Integrity
Ultimately, carbon credits could have an important role to play in marshaling the resources needed to keep the world on track to net zero by 2050, and avoiding the worst consequences of a warming world.
Carbon Streaming uses streaming transactions, a proven and flexible funding model, to scale high-integrity carbon credit projects to advance global climate action and UN Sustainable Development Goals.
Learn more at www.carbonstreaming.com.
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