8 pages, Public perception about the reality of climate change has remained polarized and propagation of fake information on social media can be a potential cause. Homophily in communication, the tendency of people to communicate with others having similar beliefs, is understood to lead to the formation of echo chambers which reinforce individual beliefs and fuel further increase in polarization. Quite surprisingly, in an empirical analysis of the effect of homophily in communication on the level of polarization using evidence from Twitter conversations on the climate change topic during 2007–2017, we find that evolution of homophily over time negatively affects the evolution of polarization in the long run. Among various information about climate change to which people are exposed to, they are more likely to be influenced by information that have higher credibility. Therefore, we study a model of polarization of beliefs in social networks that accounts for credibility of propagating information in addition to homophily in communication. We find that polarization can not increase with increase in homophily in communication unless information propagating fake beliefs has minimal credibility. We therefore infer from the empirical results that anti-climate change tweets are largely not credible.
10 pages, This research endeavor, conducted in year 2019-20, explores farmers’ perception regarding
climate change and the impacts of socioeconomic indicators affecting these perceptions in
district Mardan, KP-Pakistan. For this purpose, total of 140 sampled respondents, seventy
from each village were selected for primary data collection. Ordered probit model was used to
quantify the determinants of climate change perception. Demographic characteristics revealed
that average age of the respondents was 44.42 years, with average schooling, household size,
farming experience and farm size of 7.73 years, about 9.96 members, 27.90 years and 3.1
acres, respectively. The study findings indicated that age, education, household size, farming
experience, total income and nature of land significantly (p < 0.05) affect farmers’ perception
of climate change specifying that younger farmers perceive climate change impacts more as
compared to older farmers, while experienced were more likely to perceive than inexperienced.
Educated farmers perceived changes in climate more than less educated or uneducated. Small
holders perceived more than big landlords, rain-fed farm holders perceived more than irrigated
farm holders, high income farmers perceived more than low income farmers, owners perceived
more than owner-cum tenants and tenants and small families perceived more than big families.
The study recommended climate change awareness programs through government and nongovernment organizations, i.e. education programs, farmer field schools (FFS), agricultural
extension agencies to bridge the farmer- research gap, government role in realistic land reforms,
establishment of farm services centers (FSCs), climate information centers and diversify farm
income opportunities.
