STOCKHOLM, Aug 21 (Reuters) - Germany's Ecosia, a

nonprofit search engine, said on Thursday it has submitted a

proposal to assume a 10-year stewardship of Alphabet's

Google Chrome web browser.

According to the proposal, Google would legally separate

Chrome into a foundation, retaining ultimate ownership and

intellectual property rights and give Ecosia operational

responsibility for 10 years, Ecosia said.

Ecosia plans to reinvest part of Chrome's profits in climate

action under Ecosia's governance, with the remainder returned to

Google as compensation for the stewardship.

Google did not immediately respond to a request for comment.

Earlier in August, Perplexity AI made a $34.5 billion

unsolicited all-cash offer for Chrome, a bid far above its own

valuation as the startup reaches for the browser's billions of

users pivotal to the AI search race.