How is the comma used as an interrupter in this sentence?

i think, my dear watson, that you are onto something.

Dear Editor.

I am writing this letter to you in order to inform you about a great ambitious advance that we are witnessing in Kerala and I believe that this can spark your interest in this case and in cases involving environmental and ecological issues as a whole.

I believe that you have already had access to data or information that reveal the problem of pollution on our planet and how it will affect not only our lives, but the lives of the next generations. To minimize these problems, we must all seek to limit the pollution that we ourselves cause, but also to charge our governmental guidelines and public policies that promote the reduction of population, industries and agriculture.

In Kerala, we managed to get the attention of the government and demand an effective position on pollution and after many discussions we managed to get the government to authorize the general ban on disposable plastic, which will drastically modify our state's waste generation and decrease the pollution that these wastes can cause.

We know that this was a great victory for the environmental sector and we are very happy, but not satisfied, since we would like other states to adopt this ban in their territories. For that, we would need the full disclosure of this event and its importance for our world and our life.

I hope I can count on your participation and dissemination.

Kind regards,

Renjit Goo.