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How ethical is the search engine Ecosia?

Known as the ‘search engine that plants trees’, Ecosia has gained popularity among eco-conscious internet users since its launch in 2009.

Here we consider whether Ecosia is a good choice in comparison to the dominant brand Google and we raise questions about its relationship with Big Tech.

Ecosia bills itself as 'the search engine that plants trees'. Ecosia uses all of its profits for climate action. Most go into the planting of trees around the world.

Where does its revenue come from?

Ecosia's ad revenues 

Ecosia’s revenue largely comes from advertisements. The adverts are generated by Microsoft Advertising and Google Adsense, and when you click on one Ecosia receives a share of the revenue generated by the click (and the rest of the revenue generated from the click goes to Microsoft or Google).

The only way that Ecosia raises money is through clicks on advertisements. Therefore if you use the search engine but don’t click on ads, Ecosia won’t make any money and therefore won't be planting any additional trees. It is the ad revenue that enables them to plant trees.

Does Ecosia really plant trees when you search?

How much money Ecosia has spent on planting trees is listed every month on its website. 

Ecosia pays partners across the globe to plant trees and bring forests back to life, through activities like creating tree corridors for chimpanzees and regenerative agroforestry with farmer families. Partner names are made public, as is the amount of funding spent in each country.

It’s estimated to take about 45 searches for Ecosia to generate the revenue for a tree to be planted. As mentioned before though, if you don’t click on ads you’re not making Ecosia money, so you’re not helping to plant trees. (And random ad clicking doesn’t work, according to the Ecosia website!)

How does Ecosia score on our ethical ranking system?

See how Ecosia scores in our new full guide to search engines, along with other brands.

Ecosia is also rated in our web browser guide.

Ecosia scores reasonably well in both guides, and significantly far higher than Google.


A positive approach to finances

Ecosia is a certified B Corporation, which we believe shows the company has made a commitment to ethical behaviour.

What’s more, Ecosia is a non-profit. Ecosia says that it was built on the premise that profits wouldn’t be taken out of the company. In 2018 this commitment was made legally binding when the company sold a 1% share to The Purpose Foundation, entering into a ‘steward-ownership’ relationship.

The Purpose Foundation's steward-ownership of Ecosia legally binds Ecosia in the following ways:

  1. Shares can't be sold at a profit or owned by people outside of the company and
  2. No profits can be taken out of the company.

Ecosia doesn’t have any subsidiaries in tax havens. It publishes a monthly financial report which says it is “proudly paying taxes”.

Ecosia and solar energy

Ecosia has its own solar energy plant, and its servers use 100% renewable energy. It claims to produce twice as much solar power than is needed to power all Ecosia searches. Excess energy is fed back into the grid, and Ecosia views this as helping the transition to a renewable future.

Ecosia doesn’t publish a breakdown of how much carbon it produces overall. It is unclear whether the solar power it generates covers all of the company’s own emissions and those of its supply chain.

AI and climate impact

When Ecosia introduced AI chat and an AI search overview in 2025, some users were worried that this would significantly increase the company’s environmental impact. AI-powered searches use much more energy, water and land than straightforward search engines.

Ecosia claims that it still generates more renewable energy than its AI features use. It plans to build “the world’s greenest AI”  with smaller and faster models and by avoiding energy-heavy features like video generation. It also allows you to switch off its AI features.

Why is Ecosia working with Mistral?

Ecosia’s AI searches are powered by French company Mistral. Ecosia switched to Mistral to keep its energy and water footprint low.

Mistral scored better on climate than most other companies in the Ethical Consumer AI companies guide. It was the only company that attempted to quantify the environmental impact of its models, although this level of disclosure still fell short of our standards required for a strong ethical score.

Big Tech and digital sovereignty

When you search Ecosia you’re using indexes created by two Big Tech companies, Google and Microsoft, like many search engines do. This means that Ecosia is linked to some of the human rights abuses that these tech giants commit – like traumatising underpaid workers contracted to identify harmful content in search results.

Ecosia is taking some steps to reduce its dependence on Big Tech. 

It is developing an independent European search index and working on hosting its own AI models, to have more control over its environmental footprint and keeping user data private.

It changed its AI provider from OpenAI to Mistral, and together with French search engine, Qwant, it is building its own search index, European Search Perspective (EUSP), to decrease reliance on third-party providers altogether.
For the time being, Ecosia users in the UK can’t opt out of getting search results from Google or Microsoft, but users in France and Germany can already use EUSP.

Keep in mind though, that a provider is not automatically ethical just because it is based in Europe. While Mistral doesn’t appear to work with the Israeli military – like Google, Microsoft and OpenAI do – it does develop generative AI for the militaries of France, Luxembourg and Singapore.

We ethically screen our advertisers against our ethical ratings criteria before accepting advertising

Ecosia and digital privacy

Ecosia is registered in Germany, which means your data is protected by the European Union’s strong privacy laws.

Ecosia uses your data for targeted or behavioural advertising and marketing, but states it will always ask for your consent before enabling personalised results and advertising. Privacy protections that limit tracking and data collection are enabled by default.

We didn’t find evidence that the company uses search and browser data for training its AI model, but also no explicit statement that it didn’t. 

Is Ecosia more ethical than Google?

Ecosia has a more ethical company ethos because it’s essentially a non-profit, with funds going directly into the battle against climate change.

In contrast, Google fails to score any points in either the search engine guide or web browsers guides. It has a very poor record for digital privacy and links to military software

Should I switch to Ecosia?

If you're happy to click on adverts, some revenue generated by your clicks will go towards tree planting, and you may also add renewable energy into the power grid. 

So although Ecosia in the UK relies on Google and Microsoft searches, overall using Ecosia will have more of a positive impact on the planet than clicks on the Google or Microsoft Bing search engines.

If you want to limit the environmental impact of your Ecosia searches or you want to avoid using an AI tool that is also used by the military, you can choose AI-free searching in your Ecosia account settings. This will turn off all AI features in Ecosia.

Ethical Consumer also recommends four other search engine brands alongside Ecosia in the search engine guide.


The original article was written in 2021. 

In April 2026 we (Ethical Consumer) published an in-depth guide to search engines and a separate one on web browsers, comparing Ecosia with other brands. 

As a result of that detailed research this feature article has been updated (August 2026).