 | Agente de cambio de hábitat | Term without description | Term without children | Elemento |
| agenda urbana | Term without description | Term without children | Elemento |
| adaptación y mitigación | Term without description | Term without children | Elemento |
| adaptación de pesquerías al cambio climático | Term without description | Term without children | Elemento |
| Adaptación de las sociedades | Term without description | Term without children | Elemento |
| adaptación basada en ecosistemas | Term without description | Term without children | Elementos |
| adaptación a cambio climática | Term without description | Term without children | Elementos |
| adaptación | Term without description | Term without children | Elemento |
| Ad Astra Rocket Company | Term without description | Term without children | Elemento |
| Ad Astra | Term without description | Term without children | Elemento |
| acuíferos transfronterizos Nicaragua-Costa Rica | Term without description | Term without children | Elemento |
| acuíferos | Term without description | Term without children | Elementos |