The International Maritime Organization, a UN agency which regulates maritime transport, has voted to implement a global cap on carbon emissions from ocean shipping and a penalty on entities that exceed that limit.

After a weeklong meeting of the Marine Environment Protection Committee of the IMO and decades of talks, countries have voted to implement binding carbon reduction targets including a gradually-reducing cap on emissions and associated penalties for exceeding that cap.

Previously, the IMO made another significant environmental move when it transitioned the entire shipping industry to lower-sulfur fuels in 2020, moving towards improving a longstanding issue with large ships outputting extremely high levels of sulfur dioxide emissions, which harm human health and cause acid rain.

Today’s agreement makes the shipping industry the first sector to agree on an internationally mandated target to reduce emissions along with a global carbon price.

Advertisement – scroll for more content

The agreement includes standards for greenhouse gas intensity from maritime shipping fuels, with those standards starting in 2028 and reducing through 2035. The end goal is to reach net-zero emissions in shipping by 2050.

Companies that exceed the carbon limits set by the standard will have to pay either $100 or $380 per excess ton of emissions, depending on how much they exceed limits by. These numbers are roughly in line with the commonly-accepted social cost of carbon, which is an attempt to set the equivalent cost borne by society by every ton of carbon pollution.

Money from these penalties will be put into a fund that will reward lower-emissions ships, research into cleaner fuels, and support nations that are vulnerable to climate change.

That means that this agreement represents a global “carbon price” – an attempt to make polluters pay the costs that they shift onto everyone else by polluting.

Why carbon prices matter

The necessity of a carbon price has long been acknowledged by virtually every economist. In economic terms, pollution is called a “negative externality,” where a certain action imposes costs on a party that isn’t responsible for the action itself. That action can be thought of as a subsidy – it’s a cost imposed by the polluter that isn’t being paid by the polluter, but rather by everyone else.

Externalities distort a market because they allow certain companies to get away with cheaper costs than they should otherwise have. And a carbon price is an attempt to properly price that externality, to internalize it to the polluter in question, so that they are no longer being subsidized by everyone else’s lungs. This also incentivizes carbon reductions, because if you can make something more cleanly, you can make it more cheaply.

Many people have suggested implementing a carbon price, including former republican leadership (before the party forgot literally everything about how economics works), but political leadership has been hesitant to do what’s needed because it fears the inevitable political backlash driven by well-funded propaganda entities in the oil industry.

For that reason, most carbon pricing schemes have focused on industrial processes, rather than consumer goods. This is currently happening in Canada, which recently (unwisely) retreated from its consumer carbon price but still maintains a price on the largest polluters in the oil industry.

But until today’s agreement by the IMO, there had been no global agreement of the same in any industry. There are single-country carbon prices, and international agreements between certain countries or subnational entities, often in the form of “cap-and-trade” agreements which implement penalties, and where companies that reduce emissions earn credits that they can then sell to companies that exceed limits (California has a similar program in partnership with with Quebec), but no previous global carbon price in any industry.

Carbon prices opposed by enemies of life on Earth

Unsurprisingly, entities that favor destruction of life on Earth, such as the oil industry and those representing it (Saudi Arabia, Russia, and the bought-and-paid oil stooge who is illegally squatting in the US Oval Office), opposed these measures, claiming they would be “unworkable.”

Meanwhile, island nations whose entire existence is threatened by climate change (along with the ~2 billion people who will have to relocate by the end of the century due to rising seas) correctly said that the move isn’t strong enough, and that even stronger action is needed to avoid the worse effects of climate change.

The island nations’ position is backed by science, the oil companies’ position is not.

While these new standards are historic and need to be lauded as the first agreement of their kind, there is still more work to be done and incentives that need to be offered to ensure that greener technologies are available to help fulfill the targets. Jesse Fahnestock, Director of Decarbonisation at the Global Maritime Forum, said: 

While the targets are a step forward, they will need to be improved if they are to drive the rapid fuel shift that will enable the maritime sector to reach net zero by 2050. While we applaud the progress made, meeting the targets will require immediate and decisive investments in green fuel technology and infrastructure. The IMO will have opportunities to make these regulations more impactful over time, and national and regional policies also need to prioritise scalable e-fuels and the infrastructure needed for long-term decarbonisation.

One potential solution could be IMO’s “green corridors,” attempts to establish net-zero-emission shipping routes well in advance of the IMO’s 2050 net-zero target.

And, of course, this is only one industry, and one with a relatively low contribution to global emissions. While the vast majority of global goods are shipped over the ocean, it’s still responsible for only around 3% of global emissions. To see the large emissions reductions we need to avoid the worst effects of climate change, other more-polluting sectors – like automotive, agriculture (specifically animal agriculture), construction and heating – all could use their own carbon price to help add a forcing factor to drive down their emissions.

Lets hope that the IMO’s move sets that example, and we see more of these industries doing the right thing going forward (and ignoring those enemies of life on Earth listed above).

The agreement still has to go through a final step of approval on October, but this looks likely to happen.

Even without a carbon price, many homeowners can save money on their electricity bills today by going solar. And if you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them. 

Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here. – ad*

In the Electrek Podcast, we discuss the most popular news in the world of sustainable transport and energy. In this week’s episode, we discuss the new Tesla Cybertruck RWD, more tariff mayhem, Lucid buying Nikola, and more.

The show is live every Friday at 4 p.m. ET on Electrek’s YouTube channel.

As a reminder, we’ll have an accompanying post, like this one, on the site with an embedded link to the live stream. Head to the YouTube channel to get your questions and comments in.

After the show ends at around 5 p.m. ET, the video will be archived on YouTube and the audio on all your favorite podcast apps:

Advertisement – scroll for more content

We now have a Patreon if you want to help us avoid more ads and invest more in our content. We have some awesome gifts for our Patreons and more coming.

Here are a few of the articles that we will discuss during the podcast:

Here’s the live stream for today’s episode starting at 4:00 p.m. ET (or the video after 5 p.m. ET):

It’s that time of year again, time for events across the country to show off electric vehicles at Drive Electric Earth Month.

Drive Electric Earth Month is an offshoot of Drive Electric Week, a long-running annual tradition hosting meetups mostly in the US, but also occasionally in other countries. It started as Drive Electric Earth Day, but since not every event can happen on the same day, they went ahead and extended it to encompass “Earth Month” events that happen across the month of April. It’s all organized by Plug In America, the Sierra Club, the Electric Vehicle Association, EV Hybrid Noire, and Drive Electric USA.

Events consist of general Earth Day-style community celebrations, EV Ride & Drives where you can test drive several EVs in one place, and opportunities to talk to EV owners and ask them questions about what it’s like to live with an EV, away from the pressure of a dealership.

This month, there are currently 152 events registered across the US and 1 in Mexico (including one online webinar about things to consider when purchasing an EV).

Advertisement – scroll for more content

Events have already started, with a smattering happening over the last week. One really neat one was the Asheville event, which showcased the resiliency of EVs in an area devastated by Hurricane Helene, which was made more severe by climate change. That event was attended by the Rivian R1T which famously got dragged 100 feet submerged in mud and came out running fine.

But the bulk of the events are coming up on the weekends of April 19-20th, and even moreso, the weekend of the 26-27th.

There are plenty of events in the big cities where you’d expect, but Plug In America wanted to highlight a few of the events in smaller places around the country. Here’s a sampling of upcoming events:

• Space Coast Drive Electric Earth Month Event at the American Muscle Car Museum in Melbourne, FL on April 19, 10am-2pm – EVs are the new muscle car of the 21st century, and this event has been one of the biggest ones nationally in previous years (with 47 vehicles registered already). The event is free, but the museum has a required donation for entry.
• EV Mississippi Spring Drive Electric Earth Day Event in Hattiesburg, MS on April 19, 10am-2pm – This one is happening at a PetSmart near a Tesla Supercharger, and is a combined EV/pet adoption event with food, pets, raffle prizes, test drives, and activities for all ages.
• Big Island EV – Cruise and Picnic in Waimea, HI on April 26, 10am-1pm – EV drivers will congregate in various places around the Big Island (Kona, Waimea, Waikoloa and Hilo), then drive up Saddle Road to the Gil Kahele Recreation Area on Mauna Kea for a potluck and a chance to talk about the experience of owning EVs on the Big Island.
• Santa Barbara Earth Day 2025 and Green Car Show in Santa Barbara, CA on April 26-27, 11am-8pm – This is part of Santa Barbara’s Earth Day celebration, which routinely attracts 30,000 participants and is one of the longest-running Earth Day celebrations on the planet. The Green Car Show includes ride & drives and an “Owners Corner” where owners can showcase their EVs and attendees can check them out and ask questions.
• Earth Day’25 – EV’s role in a sustainable future in Queretaro City, Mexico on April 26, 9am-4pm – The sole Mexican event, this is a combined in-person/online seminar at the Querétaro Institute of Technology.
• Norman Earth Day Festival in Norman, OK on April 27, 12-5pm – Another municipal Earth Day festival, with hands-on activities for kids to learn about the environment. A portion of the parking lot reserved for an EV car show for EV owners who pre-register to show off their vehicles.
• Oregon Electric Vehicle Association Test Drive & Information Expo in Portland, OR on April 27, 10am-4pm – This one is at Daimler Truck’s North American HQ, and will have several EVs for test drives, owner displays (including DIY gas-to-EV conversions), and keynote presentations by EV experts. They’ll even have a 1914 Detroit Electric EV available for test rides!
• And, we at Electrek want to give a shoutout to Rove’s EV Drive Days in Santa Ana 10am-3pm April 28 – ROVE is the company behind the “full-service” EV charging concept that we’ve talked about several times here on Electrek, and we like what they’re doing for EV charging. They’ve hosted a few community events, and this is their contribution to Earth Month.

Each event has a different assortment of activities (e.g. test drives won’t be available at every event, generally just the larger ones attended by local dealerships), so be sure to check the events page to see what the plan is for your local event.

These events have offered a great way to connect with owners and see the newest electric vehicle tech, and even get a chance to do test rides and drives in person. Attendees got to hear unfiltered information from actual owners about the benefits and trials of owning EVs, allowing for longer and more genuine (and often more knowledgeable) conversations than one might normally encounter at a dealership.

And if you’re an owner – you can show off your car and answer those questions for interested onlookers.

If you can’t make it to any of the physical events, there are also a few virtual events (go here and click “online events” at the top) including a webinar about programs to help you charge your EV at work, a virtual show and tell about EVs in middle America and an information session about potential career pathways related to e-mobility in Virginia.

To view all the events and see what’s happening in your area, you can check out the list of events or the events map. You can also sign up to volunteer at your local events, and if you plan to show off your electric car, you can RSVP on each event page and list the vehicle that you plan to show (or see what other vehicles have already registered).

Charge your electric vehicle at home using rooftop solar panels. Find a reliable and competitively priced solar installer near you on EnergySage, for free. They have pre-vetted installers competing for your business, ensuring high-quality solutions and 20-30% savings. It’s free, with no sales calls until you choose an installer. Compare personalized solar quotes online and receive guidance from unbiased Energy Advisers. Get started here. – ad*