el problema mas grande es que
the biggest problem is that
hay demasiada basura en las calles
there is too much rubbish in the streets
hay demasiada polucion de los mares y rios
there is too much pollution in seas and sivers
hay demasiada destruccion de lost bosques
there is too much destruction of forests
se deberia apagar la luz
you should turn off the lights
hay demasiada gente sin espacio para vivir
people with nowhere to live
cerrar el grifo
turn off the tap
tengo que separar la basura
i have to separate the rubbish
hacer todo lo posible
do everything possible