Most companies don't have the luxury of building a brand new, carbon-neutral or net zero office building - and that may not necessarily be the best thing for the environment anyway. They have to make the best of what they've got. 

In Warrington, engineering solutions business BGEN is on that journey. E&T started a tour of their offices and the measures they've taken so far by asking what net zero means to them.

Net zero v carbon-neutral

“What a lot of organisations have done, and you'll see this a lot, is they will declare carbon-neutral. Now, that doesn't mean a lot, it means they bought trees, that's what carbon-neutral means," explains chief digital officer Simon Clarkson. "And they’ve not necessarily made any effort whatsoever to reduce the carbon footprint of their business, all they're doing is offsetting within the generator. It's not sustainable. If you were to offset the carbon production of the UK, annually, you would have to...