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I've been doing some research into web design and page layout as my company is considering a re-design. However, we have come to an argument around responsive webdesign vs SEO. The argument is around me (SEO specialist) arguing that I want dedicated pages for all my content as it's good for SEO since it focuses keywords and content properly, and it still adheres to good user journeys (providing it's done correctly), and my web designer arguing that mobile traffic is on the rise (which it is I know) so we should have more content under 1 URL and use responsive web design so that users can just scroll through content instead of having to keep be direct to different pages. What do  I do... I can't find any blogs, questions, or whiteboards that really touches on this topic, so can anyone advise me on whether I should: Create dedicated landing pages for each bit of content which is good for SEO and taking users on a journey around my site OR All content that is relative to a landing page, put all under that one URL (e.g. "About us" may have info on the company, our team, our history, careers) and allow people to scroll down what could be a very long page on any device, but  may effect SEO as I can't focus keywords/content under one URL properly, so it may effect rankings. Any advice SEO and user experience whizzes out there?

I'm running a campaign crawler through Moz on this particular page: http://www.henley.ac.uk/executive-education/leadership-and-management-programmes/ but I'm getting a notifcaiton from Moz saying, "you're not using the rel="canonical" META attribute" I don't understand what this means!! Has anyone else had this problem, or can they help me understand what this means and how to fix it? Oh, and Happy Thanksgiving from the UK! Virginia