A botched green energy subsidy scheme will cost U.K. taxpayers more than $1.4 billion, or more than 45 times its initial cost projections, according to a whistleblower.

The Renewable Heat Incentive (RHI) was initially projected to cost $30 million by requiring farmers and businesses in Northern Ireland to use green power.

But a whistleblower claims they were able to manipulate the program to receive about $200 dollars in subsidies for every $120 they spent on green fuel, according to The Times.

Once it became obvious people could make money off the program, there was a massive influx of new applications that increased the program’s costs. The program has only been in place since 2012, and has benefited roughly 2,000 people.

 Some who manipulated the subsidy scheme were able to reap about $1.8 million in profits, according to the whistleblower. A report by Northern Ireland’s auditor-general acknowledged that some individuals may have reaped about $1.1 million in profits though RHI.

This isn’t the first time the British government wasted millions of dollars on global warming projects.

In October, the U.K. government gave $11 million to the Centre for Climate Change Economics and Policy (CCCEP) in exchange for research that the organization reportedly never actually did. Much of the research CCCEP claimed to have published to get government money either weren’t about global warming, was written before the organization was even founded, or written by researchers unaffiliated with CCCEP.

The government never checked CCCEP’s supposed publication lists, saying they were “taken on trust.” CCCEP tried to falsely claim credit for research it never did while attempting to get another $5.4 million of government cash.

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