This excerpt from the speech by Greta Thunberg is an example of kairos and logos.
Kairos refers to the timeliness or urgency of a message, and Thunberg's speech is full of urgency. She highlights the fact that the world has a limited amount of time to address the issue of climate change before the consequences become too severe to bear. Her use of specific figures and dates emphasizes the urgent need for action.
Logos refers to the use of logic and reason to support an argument. In this excerpt, Thunberg is using logical arguments to support her claim that current efforts to reduce CO2 emissions are ineffective. She cites the specific figure of 350 gigatons of CO2 left to admit, and notes that this figure is decreasing rapidly. By providing specific evidence, Thunberg is making a logical case for action on climate change.
Overall, Thunberg's speech is a powerful example of how kairos and logos can be used together to make a compelling argument. By highlighting the urgency of the issue and using logical arguments to support her claims, she is able to persuade her audience to take action on climate change.