As a result, water will flow across the cell membrane into that cell (down its concentration gradient) from the surrounding environment eventually causing the cell to swell and burst (c). Hypertonic â refers to a solution that is higher in solutes than that inside of a cell.
The scientific evidence is clear. Within the scientific community, there is no debate. An overwhelming majority of climate scientists agree that global warming is happening and that human activity is the primary cause.
In its fourth assessment (AR4 2007) of the relevant scientific literature, the International Panel on Climate Change (IPCC) reported that scientists were more than 90% certain that most of global warming was being caused by increasing concentrations of greenhouse gases produced by human activities.