Hey there :)
As per your question, scientists want people to know more about carbon emissions, carbon credits, acidification, and global climate change because only then, people will understand that their doings are causing dangers to the whole world.
In detail:-
☆ OCEAN ACIDIFICATION-
Acidification reduces the availability of carbonate ions in ocean water, which provide the building blocks these organisms need to make their shells and skeletons, significantly reducing the chances for their offspring to survive.
☆ CARBON EMMISSIONS -
This has been a crucial issue. Still, There are many ways to reduce emissions of CO2 and other warming agents, including shifting energy supply away from dependence on fossil fuels, energy efficiency in the domestic, industrial, service and transport sectors; reductions in overall demand through better system design and efficient reductions in emissions.
☆ CLIMATE CHANGE -
Scientists study Earth's climate and the ways that it changes in a variety of different ways, using satellite, instrumental, historical, and environmental records. In doing so, science builds a foundation for understanding how our lives are impacted by climate change and what we can do to slow or reverse change.
~Benjemin360