The blank page is the problem, not the lack of experience. Everyone who has finished school or university has done things worth putting on a CV; they just have not been asked to describe them as a CV describes them. So let’s ask.
What you studied
Your degree or qualification, the institution, the years. If it is finished, the grade — if the grade is good. If it is not finished, the expected finish date. That is the whole entry, and for a first CV it goes first, because it is the biggest thing you have done.
Add one line of detail only if it is specific: a dissertation topic, a module you did unusually well in, a project with a real output. “Modules included statistics and research methods” is not detail. “Dissertation on urban air quality from 3,000 sensor readings, graded 71%” is.
One project
Not three. One, described properly: what it was, what you did, and what came out of it. A project is where a first CV shows the things a job needs — finishing something, working with data, working with people — without needing a job to have shown them in.
Course projects count. So does anything you built or organised outside a course, if it was finished.
One job, any job
The café, the shop, the summer at a warehouse. Employers reading graduate CVs are not looking for relevance here; they are looking for evidence that you turned up, were trusted, and got better. So write it that way:
Apologetic
Barista — part-time weekend work to support my studies.
Evidence
Barista (weekends) — served 200+ customers a shift in a two-person team; trusted with opening and cashing up from the third month.
If you have genuinely never been paid to do anything, use the nearest thing: a society role, a volunteering stint, a regular responsibility at home or in a family business. Describe it the same way.
Two things you are good at
Two, and checkable. A tool, a language, a method you have actually used: R, Excel, QGIS, “writing clear explanations”. Not “communication skills” — a hiring manager cannot test that from a list, and everyone claims it. The bullets under your project and job are where soft skills get shown.
What you want
One sentence, at the top, so the reader knows what to do with you: “Looking for a graduate analyst role in sustainability or environmental consulting.” It turns a CV into an application.
What not to do
Do not invent an internship. Do not list every module. Do not write “passionate” — nobody has ever been hired for being passionate on a CV. Do not go over a page. And do not send the same first CV to every posting; once it exists, tailoring it to each job is the next skill to learn, and the one that gets replies.