newElevations = [];
elevations.forEach(function(e) {
	newElevations.push([
		e.elevation,
		e.location.lat(),
		e.location.lng()
	])
})

csv = 'data:text/csv;charset=utf-8,'
newElevations.forEach(function(a, i){
	d = a.join(',')
	csv += i < newElevations.length ? d+ '\n' : d
});
window.open(encodeURI(csv))