Envelope Sonnet - Without Doubt

WITHOUT DOUBT natures heart beats for us all, without doubt! the seasons, all had rhythm, come whatever. happy venues, seasides, parks, hear them shout! joy, laughter, picnic baskets, days were planned. raincoats, umbrellas, all left, yes, at home. now overcoats, gloves, weather changing tone. lucky to get any we could call grand! family loved to camp. now me alone! moorland treks, seaside splashes on the sand! big domes, all-inclusive sun on demand! fresh air filtered, gentle wind, breezes blown. most humans think they are very clever! it's weather, that has, yes, the biggest clout! stop pollution, will i give up? never!