Read the passage below carefully:
For centuries, the traditional yam barn served as a cornerstone of post-harvest preservation across agricultural communities in southern Nigeria. Constructed using living wooden poles, bamboo crossbars, and yam vines, these open-air structures relied on natural ventilation to prevent rot during the dry season. However, rising ambient temperatures driven by climate change and prolonged humidity have exposed severe limits on the efficacy of natural aeration, leading to post-harvest losses exceeding forty percent in recent decades.
To address this economic vulnerability, agricultural engineers and local cooperatives pioneered modular, solar-powered cold-storage hubs. These decentralized facilities utilize off-grid photovoltaic panels to power absorption chillers, maintaining constant humidity and temperature levels tailored specifically for tuber dormancy. By delaying sprouting and fungal decay without chemical preservatives, smallholder farmers can store yams for up to eight months.
The introduction of solar cold hubs has subsequently restructured rural agrarian economics. Beyond reducing physical waste, the extended shelf life enables farming collectives to bypass immediate post-harvest glut pricing. Farmers now hold inventory until market supplies tighten, securing significantly higher profits during off-season periods. Furthermore, the operational data generated by these smart storage hubs allows microfinance institutions to assess harvest yields accurately, unlocking targeted agricultural loans for rural smallholders.
Based on the author's logical development of ideas, in what sequence do the central arguments of the passage unfold?
- 1Climatic shifts destabilized traditional ventilation storage methods, causing severe crop loss.
- 2Off-grid solar cooling technology was engineered to prolong tuber dormancy safely.
- 3Extended preservation capacity transformed rural market dynamics and broadened financial access.