National Sea Grant Aquaculture Initiative: 2020 Update. ...

Yes, human activity is putting carbon dioxide into the atmosphere faster than natural processes take it out. Rising carbon dioxide levels are strengthening Earth's greenhouse effect and causing global warming. 

There is great potential for the collective actions of many individuals worldwide to reduce global warming by making changes in their daily and annual activities that produce heat-trapping gases and aerosols.

Yes, there will probably be some short-term and long-term positive benefits from global warming, but the negative costs and impacts of continued global warming are very likely to far outweigh the positive benefits over the course of this century.

It’s only when we “zoom out” to the planet-wide scale that trends in surface temperature are obvious: despite a few, rare areas experiencing cooling, the vast majority of places across the globe are warming.

Yes, there are, but the only new process on Earth that has been identified that can account for the significant tipping of Earth's carbon balance is human activity, including deforestation, biomass burning, cement production, and—especially—fossil-fuel emissions.

Observations of sunspots and other indicators of solar activity indicate no changes that could have caused global warming over the past half century. 

Human-caused climate change is not the sole cause of any single extreme event. However, changes in the intensity or frequency of extremes may be influenced by human-caused climate change.

Yes, human activities exert a cooling influence on Earth in several ways. Overall, this cooling influence is smaller than the warming influence of the heat-trapping gases humans put into the air.

Our global historical temperature records undergo rigorous quality control and independent peer review. Plus, the proof Earth is warming is practically everywhere you look.