The phrase "a massive scale but" is correct and usable in written English.
It can be used when contrasting a large scale with another idea or condition that follows the conjunction "but."
Example: "The project was designed to operate on a massive scale but faced significant budget constraints."
Alternatives: "a large scale yet" or "a grand scale however".
Turkish security forces perpetrated thousands of extra-judicial executions of Kurdish activists in the 1990s – along with village clearances and torture on a massive scale – but few provoked the anger of ordinary Kurds more than the killing of the man who had achieved notoriety by standing up to the linguistic proscriptions of the state.
Our current global order perpetuates global poverty on a massive scale, but since feasible reforms to that order could avert this harm, our failure to make reforms not only implicates us in the misery but also in the violation of the rights of the poor.[3] We therefore have extensive obligations to reform our global order so that the rights of the poor can be fulfilled.
Santorum's proposed tripling of the child tax exemption is social-engineering on a massive scale, but of course Santorum insists that when he talks about social issues, he's just "talking about freedom".
However, in New Orleans we don't have the population to sustain a party on such a massive scale, but I figured I could pull it off for at least 24 hours during Mardi Gras midnight Lundi Gras to midnight Mardi Gras It's the only time during the year in New Orleans where one could potentially have a packed dance floor for 24 hours.
The key is not to ask ourselves if we're capable of insider trading on a massive scale –- but if we could make the first move on a slippery slope, and trade on a stock on a tip from someone in the know.
Every day can mean the difference between life and death, on a massive scale - but also on the most human level: For even in the face of a famine affecting millions, every life counts.
Perennial production could be undertaken on a massive scale, with attendant economies, but the market is neither large enough nor predictable enough (except for the greenhouse growing of such cut flowers as chrysanthemums and carnations) to interest most growers.
Whether or not it will be accepted on a massive scale is another thing, but at least you have the opportunity... Especially YouTube stars".
Putin said the Russian government regulates communications as part of criminal investigations, but "on a massive scale, on an uncontrolled scale we certainly do not allow this and I hope we will never allow it".
Like Silicon Valley startups, the Federal Government grapples with technical debt – but on a massive scale.
