Tax The Rich
www.tax-the-rich.eu
Nous voulons un impôt européen sur les grandes fortunes pour financer la transition climatique et sociale et aider les pays victimes des dérèglements climatiques.

… That is if you are a citizen of the European Union. If the petition reaches 1 million signatures, the European Commission (basically the government of the EU) is legally required to at least introduce it as a proposed law.