The British monarchy, Queen Elizabeth II paid money to an environmental charity for her trip to the USA. She paid something like $10,000 for her six-day trip and also for her staff who traveled with her reducing their carbon footprint eventually creating a Carbon Offset. To know more visit this google alerts.
To tell the truth its high time although such a thing like this should have been done some 20 years ago but people/politicians did not care or bother. Even if they did care, they did not show it. Now when everything is hanging in the balance, then they action even when there is substancial evidence, they ruled it out. Anyway what is done is done, just hope better decisions are taken in the future.