Section 2 — Science and Truth Grammar focus

Session 5 Grammar: Reporting scientific consensus

Talking accurately about science in English requires structures that distinguish established consensus from emerging evidence from contested claims. These forms help you speak with precision — and authority.

Grammar Focus

"Scientists have established that..." / "The evidence strongly suggests..." / "There is broad consensus that..."

Reporting science accurately means matching your language to the actual level of certainty behind a claim. "Scientists have established that..." uses the present perfect to signal a finding that has been tested, replicated, and accepted — it is a strong claim appropriate for settled science. "The evidence strongly suggests..." is slightly more cautious: the modal "suggests" acknowledges that evidence points firmly in a direction without being absolute. "There is broad consensus that..." reports the state of expert agreement rather than the underlying facts — useful when you want to be precise about what scientists agree on versus what remains under investigation. Never say "scientists say" as a vague appeal to authority; always be as specific as the situation allows.

"Scientists have established that smoking causes lung cancer — this is not a matter of legitimate debate." (settled science, firm language appropriate)

"The evidence strongly suggests that microplastics are accumulating in human tissue, though the health implications are still being studied." (strong direction, honest about gaps)

"There is broad consensus among climate scientists that global average temperatures will rise by at least 1.5°C above pre-industrial levels." (consensus framing)

"The research consistently points to a link between ultra-processed food consumption and chronic disease." (pattern of evidence)

"Multiple independent studies have confirmed that the vaccine is safe and effective for the vast majority of recipients." (replication as marker of reliability)

"The scientific literature is unambiguous on this point: the planet is warming, and human activity is the primary driver." (strong, sourced claim)

Variations to practice

The research consistently shows... Multiple studies have confirmed... The scientific literature is clear that... Experts in the field agree that... The data overwhelmingly indicates... The peer-reviewed evidence supports... It is now well-established that... The weight of evidence points to...