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5 Carbon Offsetting Myths You Need to Stop Believing

Carbon offsetting is a fairly fresh market, which is yet to implement a solid regulatory framework. As a result, practices are being scrutinized, while irregularities are criticized. Despite more companies joining this market with the goal of bringing innovation and transparency, many still question the market’s credibility, which has spurred a number of misconceptions.

To set the record straight, Darius Tamauskas, co-founder and CEO of carbonoffsetting hub hold.earth, has addressed five myths currently prevalent in the market.

Myth No.1: All carbon offsetting credits are the same

The carbon offsetting credit system follows a very straightforward logic — every cubic tonne emitted into the environment has to be compensated with an equivalent unit of carbon offset. This can be done either by planting trees or capturing carbon from ocean and coastal ecosystems (so-called blue carbon).

The unit defined as a ‘carbon offset credit’ gets its value from certification programs such as Verra or Gold Standard. However, due to differences in valuation, the pricing of each credit varies greatly. Also, a multitude of other factors have to be considered, such as the nature of the project, as forestry credits are likely cheaper than blue carbon, and location, as certain areas, may require higher expenditures. Highly tech-driven initiatives may ramp up the price as well.

“When choosing what carbon offsetting credits to buy, one should look for high-quality carbon credits,” advises Tamauskas. “They usually derive from high-quality projects, which can be distinguished by three key criteria. First, a project should be listed on a publicly available registry and each of its carbon credit should have a unique serial number. Second, projects should contribute to more than one UN sustainability goal. It’s also advisable to look for Verra or Gold Standard certified credits, even if their evaluation is not governed — their certificate is better than no certificate.”

Myth No.2: Carbon offsetting is like ‘buying indulgences’

Some skeptics juxtapose buying carbon credits with indulgences — a way for polluters to justify pouring waste into the environment under the guise of saving the planet. However, no organization or business can become carbon neutral by simply acquiring a few credits. According to Tamauskas, buying carbon credits is only a step towards sustainability, and to really address the issue, the company has to set up a carbon offset strategy that would support its efforts reduce CO2 emissions.

“It is important to understand that taking any action to offset carbon requires immense preparation and investment. It’s not a practice that a company can engage in when it’s convenient — the efforts need to be consistent. Also,  very often offsetting is part of a larger strategy, to mitigate carbon emissions in the business,” says Tamauskas.

Myth No.3: Offsetting is only for “big polluters”

Even though big companies are held more responsible for their environmental impact, thus are expected to take action, SMEs could also  have a measurable impact on cutting emissions. While their resources might not be comparable to strong corporate climate pledges, in the long run, each effort adds up, which helps bring tangible results faster.

“Even more so, it’s easier for small companies to engage with local carbon offsetting projects as they are located in the same area. Also, not only companies can benefit from these projects —  local communities can greatly benefit as well, as buying carbon credits from local projects supports their overall well-being,” states Tamauskas.

Moreover, statistics show that consumers increasingly care about the sustainability of brands and are even willing to pay more for eco-conscious products and services. Thus, any action taken in becoming more environmentally friendly can directly benefit business of any size.

Myth No. 4: It’s impossible to ensure transparent offsetting

It is true that one of the major issues that the voluntary offsetting market faces is double accounting — when the same carbon credits are sold twice because there is no one unified registry system. But this status quo is changing. As a matter of fact, the issue is already addressed by both entrepreneurs as well as official global organizations. For example, United Nations created REDD+ — an exemplary initiative  that aims to bring clarity and transparency to carbon offsetting through a global reporting system.

hold.earth CEO says the goal of transparency goal might be reached faster by utilizing such technologies as blockchain, which is built on a public ledger that shows all transactions, thus, can easily prevent double accounting. “Blockchain ensures all records of carbon credit transitions are accessible anytime. This provides additional value to businesses, as it enables to follow their decarbonization journey and be more involved in the process,” explained Tamauskas, who is also working on developing a blockchain solution for hold.earth.

Myth No. 5: It doesn’t bring real change

Lastly, there is a prevalent misconception that carbon offsetting does not make a noticeable impact. It plays a significant role in fighting climate change, however, it is important that the CO2 reductions are “additional”, meaning, that they would not have occurred if not for the offset credit market.

Tamauskas elaborates that the devil is in the details — offsetting works but it has to be credible and transparent, which will support the development of high-quality carbon projects. “We can say for sure that the market still has challenges to solve, and the real impact often depends on a particular project’s quality. That’s why it’s important for companies to seek high-quality carbon credits or even invest and start their own carbon offsetting projects,” says Tamauskas.

plant house home air quality indoor

Common houseplants can improve air quality indoors

Ordinary potted house plants can potentially make a significant contribution to reducing air pollution in homes and offices, according to new research led by the University of Birmingham and in partnership with the Royal Horticultural Society (RHS).

During a series of experiments monitoring common houseplants exposed to nitrogen dioxide (NO2) – a common pollutant – researchers calculated that in some conditions, the plants could be able to reduce NO2 by as much as 20 per cent. The results are published in Air Quality Atmosphere and Health.

The researchers tested three houseplants commonly found in UK homes, easy to maintain and not overly expensive to buy. They included Peace lily (Spathiphyllum wallisii), Corn plant (Dracaena fragrans) and fern arum (Zamioculcas zamiifolia).

Each plant was put, by itself, into a test chamber containing levels of NO2 comparable to an office situated next to a busy road.

Over a period of one hour, the team calculated that all the plants, regardless of species, were able to remove around half the NO2 in the chamber. The performance of the plants was not dependent on the plants’ environment, for example whether it was in light or dark conditions, and whether the soil was wet or dry.

Lead researcher Dr Christian Pfrang said: “The plants we chose were all very different from each other, yet they all showed strikingly similar abilities to remove NO2 from the atmosphere. This is very different from the way indoor plants take up CO2 in our earlier work, which is strongly dependent on environmental factors such as night time or daytime, or soil water content.”

The team also calculated what these results might mean for a small office (15 m3) and a medium-sized office (100 m3) with different levels of ventilation. In a poorly ventilated small office with high levels of air pollution, they calculated that five houseplants would reduce NO2levels by around 20 per cent.  In the larger space, the effect would be smaller – 3.5 per cent, though this effect would be increased by adding more plants.

While the effects of the plants in reducing NO2 are clear, the precise mechanism by which they do this remain a mystery. Dr Pfrang added: “We don’t think the plants are using the same process as they do for CO2 uptake, in which the gas is absorbed through stomata – tiny holes – in the leaves. There was no indication, even during longer experiments, that our plants released the NO2 back into the atmosphere, so there is likely a biological process taking place also involving the soil the plant grows in – but we don’t yet know what that is.”

Dr Tijana Blanusa, principal horticultural scientist at the RHS and one of the researchers involved in the study said: “This complements RHS efforts to understand scientific detail behind what we know to be a popular passion. Understanding the limits of what we can expect from plants helps us plan and advise on planting combinations that not only look good but also provide an important environmental service.”

In the next phase of the research, the team will be designing sophisticated tools for modelling air quality indoors encompassing a much wider range of variables. The new project, funded by the Met Office, will use mobile air quality measuring instruments to identify pollutants and test their effects in both residential and office spaces, producing a wealth of data to inform the tool’s development.

Source: press release
Photo: Pixabay