EnvironmentProperties

Source: src/Ballistics/EnvironmentProperties.cs.

Member	Type / access	Units
`m_gravityInMetric`	float, read/write	m/s²; normally negative.
`m_airPressureInMetric`	float, read/write	kPa.
`m_temperatureInMetric`	float, read/write	°C.
`m_windSpeedInMetric`	Vector3, read/write	km/h in world X/Y/Z.
`MeasurementUnit`	SniperAndBallisticsSystem.MeasurementUnits, read	Inspector display unit choice.

Create assets through Create → RSB → EnvironmentProperties. The scene system clones its assigned asset in Awake; access that clone through GlobalEnvironmentProperties for runtime changes.

var environment = SniperAndBallisticsSystem.instance.GlobalEnvironmentProperties;
environment.m_windSpeedInMetric = new Vector3(20f, 0f, 0f);

WindVector is not a current member. Pressure and temperature are used by the stability calculation; they are not parameters of GetDragVector. Changing gravity or other environmental values does not automatically invalidate cached zero trajectories.