In fact, the trust say kids with a cell phone plastered to their ear are twice as likely to get brain tumors than those who don't use them.
That directly contradicts a study from Europe last year that concluded cell phones do not cause cancer in kids and adolescents.
The group says their concern is over what the cell phones emit.
Over 30 studies on the subject of cell phones and cancer have come up inconclusive.
The Environmental Health Trust promotes awareness of environmental issues it believes are linked to cancer.