Listen to the following audio report excerpt from a podcast on environmental technology:
"Welcome to *Terra Nova*, the weekly audio dispatch on sustainable engineering. In today's segment, our reporter explores how an arid coastal settlement has managed to survive severe drought through low-cost fog harvesting. When the initiative was launched, skeptics claimed the organizers were chasing clouds, pointing to past technical failures in the region. However, the engineers refused to throw in the sponge, designing specialized nylon mesh nets along the high ridges where dense oceanic fog rolls in each morning. Instead of depending on costly tanker deliveries, the community managed to turn the tide on local water scarcity. Now, the condensation system yields thousands of liters of potable water daily, enabling residents to break new ground in dryland agriculture. By relying on communal stewardship, the project has transformed what was once deemed uninhabitable terrain into a productive oasis."
Based on the context clues in the audio transcript, match each highlighted expression on the left with its correct contextual definition on the right.
- chasing cloudsPursuing an unrealistic or impractical goal
- throw in the spongeSurrendering or abandoning an endeavor in the face of difficulties
- turn the tideReversing an unfavorable trend or challenging condition
- break new groundPioneering innovative approaches or initiating untried methods