Scientific consensus refers to the collective agreement among scientists on a particular issue based on a substantial body of evidence. This agreement is reached after extensive research, peer review, and discussion within the scientific community. It indicates that the majority of experts in a field support a specific conclusion, such as the impact of climate change on global temperatures. Achieving scientific consensus does not mean that all scientists agree completely; rather, it reflects a strong majority view. This process helps guide public policy and informs decision-making, as seen in areas like public health and environmental science.