Answer:
An issue-attention cycle.
Step-by-step explanation:
This is explained as the period or time that it takes for particularly Americans to discover that they have a problem and tackle the problem totally and then move on after the said issue is been dealt with. This was been put up by Antony Downs in the 20th century in the year 1972 due to issues human faces with environmental challenges and media attention in the past years and present developments. However, it was noted that as soon as the public comes to realize cost of the significant progress in its processing, enthusiasm for solutions to the problem dampens and can sometimes cause a decline in public interest is followed up.