| carbon emissions /ˈkɑː.bən ɪˈmɪʃ.ənz/ | CO₂ liberado al quemar combustibles fósiles | We must reduce carbon emissions immediately. |
| sustainable development /səˌsteɪ.nə.bəl dɪˈvel.əp.mənt/ | crecimiento que no compromete a futuras generaciones | Sustainable development balances economy and ecology. |
| renewable energy /rɪˌnjuː.ə.bəl ˈen.ə.dʒi/ | energía de fuentes que se regeneran naturalmente | Solar power is a form of renewable energy. |
| biodiversity /ˌbaɪ.əʊ.daɪˈvɜː.sə.ti/ | variedad de vida vegetal y animal en un hábitat | The Amazon is vital for global biodiversity. |
| deforestation /diːˌfɒr.ɪˈsteɪ.ʃən/ | eliminación a gran escala de bosques | Deforestation contributes to climate change. |
| greenhouse gases /ˈɡriːn.haʊs ˌɡæs.ɪz/ | gases que atrapan el calor en la atmósfera | CO₂ and methane are greenhouse gases. |
| ecological footprint /ˌiː.kəˈlɒdʒ.ɪ.kəl ˈfʊt.prɪnt/ | impacto humano sobre el medio ambiente | Flying increases your ecological footprint. |
| climate crisis /ˈklaɪ.mət ˈkraɪ.sɪs/ | amenaza urgente del cambio climático | Scientists warn of a worsening climate crisis. |
| net zero /ˌnet ˈzɪə.rəʊ/ | equilibrio entre emisiones y eliminación de carbono | Many countries aim for net zero by 2050. |
| conservation /ˌkɒn.səˈveɪ.ʃən/ | protección del medio ambiente natural | Wildlife conservation requires international cooperation. |