Final answer:
Two sentences using the present progressive tense about current events are: Scientists are conducting research on coronavirus vaccines, and environmental activists are organizing protests on climate change.
Step-by-step explanation:
Using the present progressive tense, which indicates ongoing action, here are two sentences about current global events: Scientists are conducting research to develop more effective vaccines in response to the evolving strains of the coronavirus. Environmental activists are organizing worldwide protests to draw attention to climate change and its impact on natural disasters.
The present progressive tense is commonly used for actions ongoing at the moment of speaking and also for planned future events. It is formed with the subject plus the auxiliary verb "be" (am, is, are) followed by a verb ending in -ing. For example, "Scientists are conducting research" and "Activists are organizing protests" both showcase this tense in use.